Automotive Technologies International, Inc. v. Delphi Corp. (776 F. Supp. 2d 469, 2011)

OPINION AND ORDER GRANTING FOUR OF DEFENDANTS’ MOTIONS FOR SUMMARY JUDGMENT AND TERMINATING AS MOOT TWO OF DEFENDANTS’ MOTIONS

ROBERT H. CLELAND, District Judge.

Before the court are six motions for summary judgment relating to four issued patents, assigned to Plaintiff, describing various automotive technologies: U.S. Patent Nos. 6,833,516 (“'516 Patent”), 7,243,-945 (“'945 Patent”), 7,407,029 (“'029 Patent”), and 6,484,080 (“'080 Patent”). The motions have been fully briefed, and the court heard oral argument on January 6, 2011. For the following reasons, the court will grant four of Defendants’ motions and terminate the remaining two as moot.

I. BACKGROUND

This action began when now-Defendants/Counter-Plaintiffs (“Defendants”) filed suit against Plaintiff/Counter-Defendant (“Plaintiff’) seeking a declaratory judgment of the invalidity of certain patents. Counterclaims were filed, the pleadings were amended, and the parties were realigned by the court. Defendant Delphi manufactures and distributes a Passive Occupant Detection System (“PODS”) product, the purpose of which is to regulate airbag deployment under certain circumstances. The other Defendants in this action are Original Equipment Manufacturers (“OEMs”) who purchased and implemented the PODS device in the vehicles they manufacture and sell. Plaintiff alleges that the production and use of the PODS device without its consent infringes the four patents-in-suit, and seeks damages. Defendants ask the court for a declaratory judgment that the patents are invalid as anticipated.

The court held a Markman hearing and subsequently construed the claims on September 11, 2009. Two additional amended complaints followed, with Plaintiff settling on litigating the four above-named patents-in-suit. The case was consolidated with Case No. 10-10647. Defendants filed their six summary judgment motions in early July 2010, and the court issued an amended scheduling order on July 20, 2010, setting a briefing schedule for responses and replies to the summary judgment motions.

II. STANDARD

Under Federal Rule of Civil Procedure 56, summary judgment is proper when “there is no genuine dispute as to any material fact and the movant is entitled to judgment as a matter of law.” Fed. R.Civ.P. 56(a). “In deciding a motion for summary judgment, the court must view the evidence in the light most favorable to the non-moving party, drawing all reasonable inferences in that party’s favor.” Sagan v. United States, 342 F.3d 493, 497 (6th Cir.2003). “Where the moving party has carried its burden of showing that the pleadings, depositions, answers to interrogatories, admissions and affidavits in the record, construed favorably to the nonmoving party, do not raise a genuine issue of material fact for trial, entry of summary judgment is appropriate.” Gutierrez v. Lynch, 826 F.2d 1534, 1536 (6th Cir.1987) (citing Celotex Corp. v. Catrett, 477 U.S. 317, 106 S.Ct. 2548, 91 L.Ed.2d 265 (1986)).

The court does not weigh the evidence to determine the truth of the matter, but rather, to determine if the evidence produced creates a genuine issue for trial. Sagan, 342 F.3d at 497 (citing Anderson v. Liberty Lobby, Inc., 477 U.S. 242, 249, 106 S.Ct. 2505, 91 L.Ed.2d 202 (1986)). The moving party must first show the absence of a genuine issue of material fact. Plant v. Morton Int'l, Inc., 212 F.3d 929, 934 (6th Cir.2000) (citing Celotex, 477 U.S. at 323, 106 S.Ct. 2548). The burden then shifts to the nonmoving party, who “must do more than simply show that there is some metaphysical doubt as to the material facts.” Matsushita Elec. Indus. Co. v. Zenith Radio Corp., 475 U.S. 574, 586, 106 S.Ct. 1348, 89 L.Ed.2d 538 (1986). The nonmovant must put forth enough evidence to show that there exists a genuine issue to be decided at trial. Plant, 212 F.3d at 934 (citing Anderson, 477 U.S. at 256, 106 S.Ct. 2505).

The existence of a factual dispute alone does not, however, defeat a properly supported motion for summary judgment— the disputed factual issue must be material. See Anderson, 477 U.S. at 252, 106 S.Ct. 2505 (“The judge’s inquiry, therefore, unavoidably asks whether reasonable jurors could find by a preponderance of the evidence that the plaintiff is entitled to a verdict — “whether there is [evidence] upon which a jury can properly proceed to find a verdict for the party producing it, upon whom the onus of proof is imposed.’ ” (alteration and emphasis in original) (quoting Schuylkill and Dauphin Improvement Co. v. Munson, 81 U.S. 442, 448, 14 Wall. 442, 20 L.Ed. 867 (1871))). A fact is “material” for purposes of the summary judgment inquiry when proof of that fact would establish or refute an essential element of the claim or a defense advanced by either party. Kendall v. Hoover Co., 751 F.2d 171, 174 (6th Cir.1984).

A patent is presumed valid under 35 U.S.C. § 282. “Consequently, ‘a moving party seeking to invalidate a patent at summary judgment must submit such clear and convincing evidence of invalidity so that no reasonable jury could find otherwise.’ ” Chrimar Sys., Inc. v. Cisco Sys., Inc., 318 F.Supp.2d 476, 491 (E.D.Mich.2004) (quoting Eli Lilly & Co. v. Barr Labs., 251 F.3d 955, 962 (Fed.Cir. 2001)); see also Beckson Marine, Inc. v. NFM, Inc., 292 F.3d 718, 725 (Fed.Cir. 2002) (holding that a party seeking to establish particular claims as invalid must overcome the presumption of validity in 35 U.S.C. § 282 by clear and convincing evidence). However, “[t]he burden of persuasion created by the presumption of validity of the patent as issued is more easily met when evidence is introduced of more pertinent prior art than that considered by the Patent Examiner during prosecution of the patent application.” Standard Mfg. Co. v. United States, 25 Cl.Ct. 1, 50 (Cl.Ct. 1991) (citing Solder Removal Co. v. United States Int’l Trade Comm’n, 65 C.C.P.A. 120, 582 F.2d 628, 633 (1978)).

Finally, “[a] quite different burden is that of going forward with evidence — sometimes referred to as the burden of production — a shifting burden the allocation of which depends on where in the process of trial the issue arises.” Tech. Licensing Corp. v. Videotek, Inc., 545 F.3d 1316, 1327 (Fed.Cir.2008). First the party alleging invalidity has the burden of going forward with evidence of anticipating prior art, and then the patent-holder has the burden of going forward with evidence

that it is not prior art because the asserted claim is entitled to the benefit of a filing date prior to the alleged prior art. This requires [a party] to show not only the existence of the earlier application, but why the written description in the earlier application supports the claim.

Id. (citation omitted). This “means producing sufficient evidence and argument to show that an ancestor to the [patent at issue], with a filing date prior to the [alleged prior art] date, contains a written description that supports all the limitations of ... the claim being asserted.” Id. “Under 35 U.S.C. § 102 a claim is anticipated if each and every limitation is found either expressly or inherently in a single prior art reference.” King Pharms., Inc. v. Eon Labs, Inc., 616 F.3d 1267, 1274 (Fed.Cir. 2010) (internal quotation marks omitted).

In order to establish invalidity on obviousness grounds, Defendants must show that “the differences between the subject matter sought to be patented and the prior art are such that the subject matter as a whole would have been obvious at the time the invention was made to a person having ordinary skill in the art to which said subject matter pertains.” See 35 U.S.C. § 103(a).

Obviousness under 35 U.S.C. § 103(a) is ultimately a legal question, based on underlying factual determinations. See Richardson-Vicks, Inc. v. Upjohn Co., 122 F.3d 1476, 1479 (Fed.Cir.1997). The factual determinations underpinning the legal conclusion of obviousness include 1) the scope and content of the prior art, 2) the level of ordinary skill in the art, 3) the differences between the claimed invention and the prior art, and 4) evidence of secondary factors, also known as objective indicia of non-obviousness. Graham v. John Deere Co., 383 U.S. 1, 17-18, 86 S.Ct. 684, 15 L.Ed.2d 545 (1966).

Eisai Co. v. Dr. Reddy’s Labs., Ltd., 533 F.3d 1353, 1356 (Fed.Cir.2008); see also Para-Ordnance Mfg., Inc. v. SGS Imps. Int’l, Inc., 73 F.3d 1085, 1088 (Fed.Cir. 1995) (“The ultimate determination of obviousness is a question of law, which we review de novo.”). “The scope and content of the prior art, differences between the prior art and the claimed invention, the level of ordinary skill in the art, and objective evidence of secondary considerations of patentability are fact determinations.” Para-Ordnance, 73 F.3d at 1088. Additionally, “[wjhat the prior art teaches and whether it teaches toward or away from the claimed invention also is a determination of fact.” Id. It is the movant’s burden to prove invalidity by clear and convincing evidence. Eisai, 533 F.3d at 1356 (citing Monarch Knitting Mach. Corp. v. Sulzer Morat GmbH, 139 F.3d 877, 881 (Fed.Cir. 1998)). As “[t]he Supreme Court stated in Anderson, ... ‘in ruling on a motion for summary judgment, the judge must view the evidence presented through the prism of the substantive evidentiary burden.’ ” Enzo Biochem, Inc. v. Gen-Probe Inc., 424 F.3d 1276, 1284 (Fed.Cir.2005) (quoting Anderson, 477 U.S. at 254, 106 S.Ct. 2505).

“The grant of summary judgment of invalidity for obviousness must be done on a claim by claim basis.” Knoll Pharm. Co. v. Teva Pharms. USA Inc., 367 F.3d 1381, 1384 (Fed.Cir.2004) (citing Dayco Prods., Inc. v. Total Containment, Inc., 329 F.3d 1358, 1371 (Fed.Cir.2003)). “The accused infringer must prove by clear and convincing evidence that each claim that is challenged cannot reasonably be held to be non-obvious.” Id. (citing Monarch Knitting Mach. Corp., 139 F.3d at 881). Clear and convincing evidence exists when the movant “placets] in the ultimate factfinder an abiding conviction that the truth of its factual contentions are ‘highly probable.’ ” Colorado v. New Mexico, 467 U.S. 310, 316, 104 S.Ct. 2433, 81 L.Ed.2d 247 (1984).

The Supreme Court clarified the law of obviousness in KSR Int’l Co. v. Teleflex Inc., 550 U.S. 398, 127 S.Ct. 1727, 167 L.Ed.2d 705 (2007). In KSR, the Supreme Court rejected a rigid application of the “teaching, suggestion, or motivation” (“TSM”) test. KSR, 550 U.S. at 418-19, 127 S.Ct. 1727. The Court explained: “The obviousness analysis cannot be confined by a formalistic conception of the words teaching, suggestion, and motivation, or by overemphasis on the importance of published articles and the explicit content of issued patents.” Id. at 419, 127 S.Ct. 1727. The Federal Circuit has since elaborated:

[A] rigid requirement of reliance on written prior art or patent references would, as the Supreme Court noted, unduly confine the use of the knowledge and creativity within the grasp of an ordinarily skilled artisan. [KSR, 127 S.Ct.] at 1742.

As this court has explained, however, a flexible TSM test remains the primary guarantor against a non-statutory hindsight analysis such as occurred in this case. In re Translogic Tech., Inc., 504 F.3d 1249, 1257 (Fed.Cir.2007) (“[A]s the Supreme Court suggests, a flexible approach to the TSM test prevents hindsight and focuses on evidence before the time of invention.”). The TSM test, flexibly applied, merely assures that the obviousness test proceeds on the basis of evidence — teachings, suggestions (a tellingly broad term), or motivations (an equally broad term) — that arise before the time of invention as the statute requires. As KSR requires, those teachings, suggestions, or motivations need not always be written references but may be found within the knowledge and creativity of ordinarily skilled artisans.

Ortho-McNeil Pharm., Inc. v. Mylan Labs., Inc., 520 F.3d 1358, 1364-65 (Fed. Cir.2008).

III. DISCUSSION

Defendants have submitted six separate motions for summary judgment regarding the four patents-in-suit. Two patents are the objects of two motions each, and the two remaining patents have a single motion attacking their respective claims. Defendants have moved for summary judgment on the basis of anticipation of the '516, '029, '945, and '080 Patents, and on the basis of obviousness of the '945 Patent. They have also moved for summary judgment on two claims of the '080 Patent on the basis of collateral estoppel.

A. '516 Patent

The court finds the '516 Patent invalid as anticipated by U.S. Patent No. 5,232,243 (“Blackburn '243”), as there is no genuine dispute as to any material fact. Therefore, it need not consider the parties’ arguments over DE 38 02 159 (“Roland '159”). Blackburn '243 issued on August 3, 1993, and therefore constitutes § 102(b) art to the '516 Patent, which the parties agree, for the purpose of this motion only, claims a priority date of June 7, 1995.

Plaintiff has agreed to litigate representative claims 14, 15, and 18 of the '516 Patent. Defendants argue that Blackburn '243 teaches each and every limitation of those three claims. Plaintiff responds to these arguments, largely through the declaration of Dr. Hal Watson, Jr. (“Watson Declaration”), supplemented by references to the deposition of Dr. David S. Breed (“Breed Deposition”).

Plaintiff relies heavily on the Watson Declaration throughout its responses to the motions for summary judgment now pending before the court. While an expert’s declaration may be of use to a court in deciding whether there is a genuine dispute of material fact, such a declaration is not necessarily capable of creating a genuine dispute and thereby defeating a motion for summary judgment on its own. “Broad conclusory statements offered by ... experts are not evidence and are not sufficient to establish a genuine issue of material fact.” Telemac Cellular Corp. v. Topp Telecom, Inc., 247 F.3d 1316, 1329 (Fed.Cir.2001) (citing Arthur A. Collins, Inc. v. N. Telecom, Ltd., 216 F.3d 1042, 1046 (Fed.Cir.2000)); accord Sitrick v. Dreamworks, LLC, 516 F.3d 993, 1001 (Fed. Cir.2008) (“Conclusory expert assertions cannot raise triable issues of material fact on summary judgment.”); see KSR, 550 U.S. at 425-26, 127 S.Ct. 1727 (finding expert declaration insufficient to create a dispute over obviousness of challenged patent in reversing Federal Circuit’s vacation of grant of summary judgment by the district court). Thus, in evaluating the motions for summary judgment, the court looks to whether the underlying facts are in genuine dispute, not to whether Plaintiffs expert’s reading of the prior art creates a dispute.

1. Claim II

Claim 14 provides:

A method for controlling a deployable component in a vehicle, comprising the steps of: measuring at least one morphological characteristic of an occupant; obtaining a current position of at least a part of a seat on which the occupant is situated; and controlling the component based on the at least one measured morphological characteristic of the occupant and the current position of the seat, the step of controlling the component comprising the step of suppressing deployment of the component based on the at least one measured morphological characteristic of the occupant and the current position of the seat.

In its Markman order, the court construed “obtaining a current position of at least a part of a seat on which the occupant is situated” as “detecting the current position of at least a part of the seat on which the occupant is situated with respect to a reference position. In other words, detecting how far forward or backward the seat is.” (Dkt. # 41 at 35.) The parties have agreed to construe: “measuring at least one morphological characteristic of an occupant” as “measuring any measurable property of an occupant such as height, weight, leg or arm length, or head diameter”; “controlling” as having its ordinary meaning; and “suppressing deployment of the component based on the at least one measured morphological characteristic of the occupant and the current position of the seat” as “suppressing deployment of the component in a manner that is determined by at least the following: (1) the at least one measured morphological characteristic of the occupant; and (2) the current position of the seat.” (Dkt. # 92 Ex. 8 at 30.)

The court will address only those elements of the claim in dispute.

a. “measuring any measurable property of an occupant such as height, weight, leg or arm length, or head diameter”

Defendants argue Blackburn '243’s teaching of “an ‘occupant position and weight sensor 260’ that detects ‘the weight’ of an object in a vehicle seat” anticipates the parties’ agreed upon construction. See Blackburn '243 at 9:47-49. Plaintiff has two arguments in response: 1) the reference “does not disclose how the weight sensor is operating, but merely discloses a sensor” that detects weight, and therefore is non-enabling; and 2) the reference “fails to inherently disclose the measurement of a morphological characteristic.” (Dkt. # 125 ¶ 10; see Dkt. # 118 at 11-12.)

Plaintiffs enablement argument is unavailing, because Blackburn '243 clearly teaches this measurement element. The '516 limitation does not require measuring weight in a certain manner, nor does it require a precise method of calculation. It simply requires “measuring any measurable property,” which Blackburn '243 teaches, and this simple concept does not require great levels of detail to enable one of ordinary skill in the art to understand how to make and use the claimed invention. Such a person would understand how to measure weight. Similarly, Plaintiffs inherent disclosure argument is unpersuasive. A “simple switch concept,” (Dkt. # 125 ¶ 10), is capable of “measuring any measurable property,” which is all that is required by the parties’ agreed upon construction. Plaintiff does not dispute that Blackburn '243 discloses a weight sensor, only that it “does not require the measurement of a morphological characteristic as required by this element.” (Id.) As the agreed upon construction does not require any sophisticated form of measurement, but simply measurement of a characteristic “such as ... weight,” Blackburn '243 anticipates this element, because it teaches a weight sensor to measure weight.

b. “suppressing deployment of the component in a manner that is determined by at least the following: (1) the at least one measured morphological characteristic of the occupant; and (2) the current position of the seat”

Defendants next argue that this suppressing element is taught by Blackburn '243’s disclosure “that ‘[t]he deployment of the airbag is controlled in response to the weight and position of the occupant’ ” and

that a “controller 250 monitors ... the seat position sensor 272, the incline of the seat back from the sensor 270, and ... the output signals from sensors 260 [the occupant position and weight sensor] and 266. A determination is made as to whether the occupant is at a location relative to the airbag assembly for which the airbag would not provide effective protection in a crash condition. If it is determined that an occupant is sitting at this ineffective protection location, the airbag is not deployed upon a vehicle crash condition.”

(Dkt. # 92 Ex. 10 at 2 (alteration in original) (quoting Blackburn '243 at 12:18-30).) Plaintiff contends that “the reference teaches suppression of deployment based only on the presence or absence of an occupant and whether the occupant is animate or inanimate” and if that analysis results in deployment, “only then does the reference disclose using weight and seat position to determine the manner in which the airbag is to be employed.” (Dkt. # 118 at 12 (emphasis removed).)

Plaintiffs analysis is unconvincing. The element requires suppression based on at least a morphological characteristic — in this case weight — and the seat position. Plaintiff in essence contends that since the reference has a two-step process for this suppression decision, it does not teach the element, even though Plaintiff concedes that “weight and seat position” are used “to determine the manner in which the airbag is to be employed” once the deployment decision is made. (Id.) But the element in claim 14 does not restrict itself to a one-step process for deployment and suppression decisions. Because Blackburn '243 teaches suppressing the airbag based on seat position and weight, this element, too, is anticipated by the reference.

There is no genuine issue of material fact that Blackburn '243 teaches each and every element of claim 14. Defendants have shown by clear and convincing evidence that the claim is invalid as anticipated.

2. Claim 15

Plaintiff disputes Defendants’ argument that claim 15 is anticipated only insofar as it depends on claim 14. Accordingly, for the reasons stated above, claim 15 is also invalid as anticipated.

3. Claim 18

Defendants argue that Blackburn '243 anticipates this dependent claim because it teaches a weight sensor, as is discussed above. Plaintiff responds that the reference makes no such disclosure for the same reasons described above in connection with claim 14. Because Blackburn '243 does indeed disclose a weight sensor that measures the weight of the occupant, it teaches each and every element of the claim, which is thereby rendered invalid as anticipated.

Blackburn '243 anticipates representative claims 14, 15, and 18. Accordingly, Defendants are entitled to summary judgment. The court will grant Defendants’ “Motion for Summary Judgment of Invalidity of the '516 Patent.”

B. '945 Patent

The court will grant Defendants’ motion for summary judgment of invalidity on the basis that the '945 Patent is invalid as obvious under 35 U.S.C. § 103, and therefore need not consider Defendants’ motion for summary judgment on the basis of anticipation. Similarly, as the court finds the litigated claims of the '945 Patent obvious in view of the prior art, it declines to address the parties’ arguments regarding whether Plaintiff is estopped from defending the '945 Patent as non-obvious due to the prosecution history of the patent.

The parties agree that “one of ordinary skill in the art to which the '945 patent pertains would be an automotive engineer having at least an undergraduate degree in mechanical, electrical, or computer engineering, and at least a few years of experience working with automobile safety systems or sensors designed for use with automobiles.” (Dkt. # 106 at 17 n. 10.) The court will therefore adopt this meaning in conducting the obviousness analysis.

Defendants’ contention, in essence, is that the prior art taught two general categories of invention at the time Plaintiff filed the application that would become the '945 Patent: a pressure sensor that signals a module that controls airbag deployment, and a bladder-based sensor capable of sending a signal to adjust components of a vehicle based on seat occupancy. They argue that the '945 Patent’s claims are drawn toward simply substituting the bladder-based sensor, which was known to regulate vehicle components, for the pressure sensor, which was known to send signals to regulate an airbag. In other words, Defendants argue that the prior art taught a class of sensors that could regulate a specific component, and a specific sensor that could regulate a class of components. Plaintiffs patent, they say, merely selects the specific sensor (bladder-based) and the specific component (occupant restraint device, and in particular, an airbag).

Plaintiff says that the combination of the bladder and the airbag was not obvious, and Plaintiff reminds the court that it may not rely on the benefit of hindsight when judging the obviousness of an invention. Gutenberg’s printing press, Galileo’s telescope, and Goddard’s rocket may seem ordinary and obvious today, but at the time of invention these achievements were anything but. So too, Plaintiff says, is the case with bladder-based sensors regulating airbags. It was not obvious to swap a bladder-based weight sensor for a simple pressure sensor, and there was nothing in the art at the time that suggested doing so. Plaintiff adds, inter alia, that: Defendants cannot, as a matter of law, meet a heightened burden of proof where the United States Patent and Trademark Office (“PTO”) considered the prior art advanced as anticipatory; the Command 2000 System is not prior art; and looking to “secondary considerations of non-obviousness,” the alleged infringing device was a “wild success,” the '945 Patent’s invention solved a “long-felt but unresolved need,” others could not solve the problem, and the invention “exhibited unexpected results.” (Dkt. # 123 at 7-9, 24-30.)

The court is mindful that resolution of each Graham prong requires a factual determination, but finds there is no genuine dispute of material fact as to any of the prongs.

1. Scope and Content of the Prior Art

In the obviousness inquiry, after bestowing some general characteristics upon the putative person having ordinary skill in the art, the court must determine the scope of the prior art. With the exception of the COMMAND 2000 System, the parties agree that the references cited by Defendants constitute prior art. The art, as noted, falls into two categories, which provide a useful framework for the discussion of the art’s scope.

a. Sensor-regulated airbags

Defendants assert four prior art references as disclosing pressure sensor-regulated airbags: U.S. Patent Nos. 5,071,160 (“White '160”), 5,074,583 (“Fujita '583”), 5,413,378 (“Steffens '378”), and 5,670,853 (“Bauer '853”).

White '160 teaches regulating a restraint device, such as an airbag, using a system that includes a control module and “a pressure transducer” located in the vehicle occupant’s seat. The pressure sensor and other sensors send a signal to a module that in turn controls airbag deployment. White '160 at 4:26-6:10. Fujita '583 similarly discloses pressure sensors in the vehicle seat cushion that are connected to a control unit that regulates an airbag. Fujita '583 at 6:29-32, 8:66-9:11. Steffens '378 describes a weight sensor, which is linked to a controller that controls an occupant restraint device, such as an airbag. Steffens '378 at 3:29-34, 8:32-40. Bauer '853, finally, also teaches weight sensors that, through an intermediate controller, regulate the airbag and other components. Bauer '853 at Abstract, 3:28-33, 3:55-58. Importantly, Bauer '853 suggests that position and weight sensors are interchangeable: “Controller 36 is operatively connected to position and weight sensor 52. The position and weight sensor 52 is preferably an NxM array of individual position and weight sensors as shown and described in U.S. Pat. No. 5,232,243.” Bauer '853 at 57-60 (boldface emphasis in original, italicized emphasis added).

b. Bladder-based sensors

Defendants also cite to a body of art that discloses bladder-based sensors used to control vehicle components. Defendants cite EP 0 152 092 (“Lobe '092”), JP 3-32943 (“Takagi '943”), and U.S. Patent No. 5,176,424 (“Tobita '424”). Defendants further argue that Delphi’s COMMAND 2000 System discloses a bladder-based pressure sensor. Because the court finds that the published references are sufficient, when combined with the sensor-regulated airbag references discussed above, to render the '945 Patent invalid as obvious, it will not reach the parties’ arguments regarding the COMMAND 2000 System.

Lobe '092 teaches a bladder-based pressure sensor in the seat of a vehicle. Lobe '092 at 2. Takagi '943 discloses a bladder-based sensor, located in the seat cushion, that signals a processor to adjust the height of the seat and of the headrest. Takagi '943 Translation at 3^4. Tobita '424 describes the use of a bladder lodged in a seat cushion to sense pressure and signal a control unit, which in turn adjusts the amount of fluid in the bladder to affect the firmness of the seat. Tobita '424 at 6:11-63.

Thus, the court concludes that the prior art teaches both various sensors regulating airbags, and bladder-based sensors regulating various components.

2. Difference Between Claimed Invention and Prior Art

The '945 Patent’s claims, as construed in the court’s Markman order and by agreement of the parties, provide:

1. An apparatus for sensing pressure applied to a seat by an occupant of the seat and for controlling deployment of an airbag, comprising: a bladder defining a chamber, said bladder being adapted to be arranged in a seat portion of the seat; a control module that issues a command or commands to control whether to deploy or suppress the airbag and/or how to adjust the manner in which the airbag is deployed; and a pressure sensor for measuring a pressure in said chamber, said pressure sensor generates a signal based upon the measured pressure in the chamber and provides that signal to the control module.

2. A method for controlling an occupant restraint device arranged to protect an occupant in a vehicle in a crash involving the vehicle, comprising the steps of: arranging a bladder defining a chamber in a seat portion of a seat in the vehicle; measuring a pressure in the chamber; providing a signal based upon the measured pressure in the chamber to a control module; and using a control module to issue a command or commands to control whether to deploy or suppress the occupant restraint device and/or how to adjust the manner in which the occupant restraint device is deployed.

3. The method of claim 2, wherein the occupant restraint device is an airbag.

4. A vehicle including a system for protecting art [sic — an] occupant in the vehicle in a crash involving the vehicle, comprising: an occupant restraint device arranged in the vehicle to protect the occupant of the vehicle; a seat having the seating area of a seat; a bladder having a chamber, said bladder being arranged in said seat portion; a control module that issues a command or commands to control whether to deploy or suppress the occupant restraint device, and if deployed, how to adjust the manner in which the occupant restraint device is deployed; and a pressure sensor for measuring a pressure in said chamber, said pressure sensor generates a signal based upon the measured pressure in the chamber and provides that signal to the control module.

5. The vehicle of claim 4, wherein said occupant restraint device is an airbag.

6. The method of claim 2, further comprising the step of using the control module to issue a command or commands to control at least one other vehicular system, subsystem or component.

7.The method of claim 6, wherein the at least one other system, subsystem or Component is a pressure control device which controls pressure in the chamber.

('945 Patent (emphasis in original); see Dkt. # 41 at 54; Dkt. # 92 Ex. 8 at 1-4, 26-27.) The claims of the '945 Patent describe an apparatus, method, or vehicle, where bladder-based pressure sensors in the vehicle seat are used to signal a control device that regulates an occupant restraint device, which in certain claims is limited to an airbag. The prior art, by contrast, teaches the bladder-based sensor and occupant restraint device regulation elements separately.

3. Secondary Considerations of Non-obviousness

Under Graham, which was explained but not overruled by KSR, the court must look also to any secondary indicia of non-obviousness. See Geo M. Martin Co. v. Alliance Mach. Sys. Int’l LLC, 618 F.3d 1294, 1304 (Fed.Cir.2010). Plaintiff asserts four such secondary considerations: commercial success, resolution of “a long-felt but unresolved need,” the difficulty others had in solving the problem, and the unexpected results attained.

To prove commercial success, the patentee carries the initial burden of showing both commercial success and a nexus between the infringed claims and that success. J.T. Eaton & Co. v. Atl. Paste & Glue Co., 106 F.3d 1563, 1571 (Fed.Cir. 1997); see Crocs, Inc. v. Int’l Trade Comm’n, 598 F.3d 1294, 1310-11 (Fed.Cir. 2010). “If a patentee makes the requisite showing of nexus between commercial success and the patented invention, the burden shifts to the challenger to prove that the commercial success is instead due to other factors extraneous to the patented invention, such as advertising or superior workmanship.” J.T. Eaton, 106 F.3d at 1571; accord Crocs, 598 F.3d at 1311 (“Once the patentee demonstrates a prima facie nexus, the burden of coming forward with evidence in rebuttal shifts to the challenger.”). Plaintiff argues that Delphi’s PODS product, the alleged infringing device, had a 70% market share, thereby evincing commercial success. (Dkt. # 123 at 25.) Plaintiff also maintains, with respect to the nexus issue, that Defendants produce no evidence in support of their assertion that a nexus was lacking, while Plaintiff has produced the declaration of Dr. David Breed (“Breed Declaration”), Plaintiffs chief executive, opining that the commercial success was due to features claimed in the '945 Patent. (Id.; see Tr. 168:8-173:4.)

As the burden is on the patentee to show commercial success, Plaintiff must advance evidence in support of a nexus before any burden of production shifts to Defendants to rebut the nexus element. Here, Plaintiffs declaration, by an expert who is also Plaintiffs executive, contains merely a statement asserting the existence of a nexus between the claims and the success. Such a conclusory statement from an interested party is entitled to little weight. The court, supra, quoted once before a statement well worth repeating here in reviewing the Breed Declaration: “Broad conclusory statements offered by ... experts are not evidence and are not sufficient to establish a genuine issue of material fact.” Telemac Cellular Corp. v. Topp Telecom, Inc., 247 F.3d 1316, 1329 (Fed.Cir.2001) (citing Arthur A. Collins, Inc. v. N. Telecom, Ltd., 216 F.3d 1042, 1046 (Fed.Cir.2000)). A broad, conclusory statement advanced by an expert is entitled to even less weight when that expert is also the chief executive of the party offering it for its truth. Accordingly, Plaintiff has not met its burden of showing the commercial success of the PODS product was due to the infringement of Plaintiffs claims, and therefore commercial success is an unpersuasive secondary consideration in the obviousness analysis.

Defendants respond to Plaintiffs next three secondary indicia in bulk, stating that the alleged satisfaction of a long-felt need, the failure of others, and the unexpected results “all fail because they rely on unclaimed features.” (Dkt. # 141 at 9-10.) The court agrees. Plaintiff argues that there was a long-felt need, prior to government intervention in the form of requiring OEMs to incorporate occupant detection systems in their vehicles, for airbags that would respond differently to different types of vehicle occupants. (Dkt. # 123 at 26.) But the broad and general claims of the '945 Patent do not describe the detection of “morphological characteristics” of an occupant or the presence of a child seat. Rather, they describe a generalized system of sensing an occupant and adjusting airbag deployment as a result. Similarly, the claims do not suggest that the '945 Patent solved the problem of detecting when an occupant leaves a seat, again because they are directed only to a generalized system of occupant detection and airbag deployment. (See id. at 27-28.) Thus, Defendant Delphi’s alleged difficulty in solving the engineering problem of using a bladder to measure occupant departure, and the problems others had in using other types of sensors, is of no moment to the obviousness analysis because those features are not claimed.

Finally, Plaintiffs arguments regarding an “unexpected result” are unpersuasive. Plaintiff seems to contend that the unexpected result is simply the fact of the invention, that is, that bladder-based sensors could be used in this way. (Id. at 29-30.) The combination of the bladder with the control module and airbag, rather than using the bladder as a part of another type of system, is simply a result. Plaintiff has not demonstrated why one would not have expected such a system to function.

Plaintiffs secondary considerations, for the reasons stated above, are not probative of obviousness.

Turning to whether the '945 Patent is obvious in view of the prior art beyond any secondary considerations, the court finds that it is. The prior art, at the time of invention, taught both bladder-based sensors used to regulate vehicle components, and airbags regulated by different types of pressure sensors. The combination of a bladder-based sensor with an airbag control system would have been obvious to one of ordinary skill in the art at that time.

As Defendants indicate, Bauer '853 contains the suggestion of combining airbag control systems with different types of pressure sensors. Bauer '853 at 4:2-4 (“Weight may alternatively be sensed using a weight sensor other than that disclosed in the '243 patent.”). {See Tr. 44:22-45:12.) Moreover, in accordance with KSR, the teaching, suggestion, or motivation to combine existing knowledge need not be referenced explicitly in the prior art. It is enough that it would have been obvious to the person having ordinary skill in the art, which the Supreme Court has instructed is a person having ordinary creativity, to combine the references.

A district court must undertake the challenging task of assuming the' knowledge of an automotive engineer with a few years’ experience in 1995 to engage in the thought experiment the law requires. While the parties disagree over the teaching, suggestion, or motivation to combine, they do not disagree over the substantive teachings of the prior art cited here. Thus, there is no genuine dispute of material fact regarding these references, and whether they render the '945 Patent obvious is a matter of law. The court is convinced that the mere substitution of one known type of sensor for another in already well-developed airbag systems is as obvious a combination as one might find. It might even have been obvious to a lay person, upon a brief description of the state of the art, to combine different types of sensors with various components to regulate in a vehicle.

KSR is instructive in undertaking the analysis here, not just for its description of the law, but also because the facts before the Court in that case are strikingly similar to those before this court in the present matter. The patent at issue in KSR claimed an adjustable vehicle pedal with an electronic sensor attached to the pedal to detect the position of the pedal. KSR, 550 U.S. at 411, 127 S.Ct. 1727. The district court found that a prior art reference, Asano, “taught everything contained in claim 4 except the use of a sensor to detect the pedal’s position and transmit it to the computer controlling the throttle.” Id. at 413, 127 S.Ct. 1727. The district court found that the combination of electronic sensors and adjustable pedals was inevitable, as indicated by a reference, Rixon, and that another reference, Smith, taught a solution that would solve a problem presented in Rixon, thus allowing for the combination of Asano with an electronic sensor. Id. The Federal Circuit reversed the district court, reasoning that “unless the ‘prior art references address[ed] the precise problem that the patentee was trying to solve,’ the problem would not motivate an inventor to look at those references.” Id. at 414, 127 S.Ct. 1727 (alteration in original) (quoting Teleflex, Inc. v. KSR Int’l Co., 119 Fed.Appx. 282, 288 (Fed.Cir.2005)). Thus, the Court of Appeals held, because the prior art did not explicitly reference a teaching, suggestion, or motivation to combine the art, claim 4 was not obvious. Id. at 414, 127 S.Ct. 1727. At the very least, the Federal Circuit said, Teleflex’s expert’s assertion of nonobviousness was sufficient to create a genuine dispute of material fact. Id. at 415, 127 S.Ct. 1727.

As is described, supra, the Supreme Court in KSR “rejected] the rigid approach” of the Federal Circuit. Id. The Court directed reviewing courts to use “common sense” and enabled them to look beyond “the problem the patentee was trying to solve.” Id. at 420, 127 S.Ct. 1727. The Court instructed, “in many cases a person of ordinary skill will be able to fit the teachings of multiple patents together like pieces of a puzzle,” and observed, “[a] person of ordinary skill is also a person of ordinary creativity.” Id. at 420-21, 127 S.Ct. 1727. Applying these principles, the Court held the claim obvious. Id. at 422, 127 S.Ct. 1727.

Just as KSR concerned the combination of two previously known automotive vehicle components in a single device, so too does this case present such a combination. Just as the absence of explicit motivations in each prior art reference in KSR did not avoid a finding of obviousness, so too does that absence not preclude such a finding here. Just as the Court relied on “common sense” to recognize that different known puzzle pieces are likely to be placed together by one of ordinary skill in the art “to solve a problem [where] there are a finite number of identified, predictable solutions,” so too is this a case of such puzzle-solving. See id. at 420-21, 127 S.Ct. 1727. And finally, just as an expert’s assertion of nonobviousness was not sufficient to create a genuine dispute of material fact there, so too is it insufficient here.

In short, KSR is just about as damaging a case to Plaintiffs attempts to avoid summary judgment on obviousness grounds as there could be. Read narrowly, it states that prior art need not contain the suggestion of combination for it to be obvious to combine vehicle components to create a more sophisticated vehicle system of the same general type that already exists in the prior art. The court holds that the parties’ arguments over the '945 Patent fit neatly within this paradigm. Therefore, the '945 Patent is obvious in view of White '160, Fujita '583, Steffens '378, Bauer '853, Lobe '092, Takagi '943, and Tobita '424. Defendants’ “Motion for Summary Judgment of Invalidity of the '945 Patent Pursuant to 35 U.S.C. § 103 as Obvious in View of the Prior Art” will be granted.

C. '029 Patent

The central and dispositive issue contested by the parties over the motion directed toward the '029 Patent is the priority date to which the patent can reach. Because the '029 Patent can claim priority only back to December 11, 2003, at the earliest, U.S. Patent No. 6,442,504 (“Breed '504”) is § 102(b) art, because it issued August 27, 2002, and renders the '029 Patent invalid as anticipated. The court will grant the motion on the basis of Breed '504, and therefore need not reach Defendants’ arguments regarding JP 3-32943 (“Takagi '943”) and U.S. Patent No. 5,927,-427 (“Sewell '427”).

1. Priority

Defendants assert that the '029 Patent is entitled to a priority date of December 11, 2003, at the earliest, the filing date of the '945 Patent, the earliest patent in the family that references all six corresponding structures for the “adjustment system” as construed by the court in the Markman order. Plaintiff rejoins that a parent application is not required to disclose all of the corresponding structures to a means-plus-function claim to lend its priority date to the later application as long as the infringing product does not read upon the undisclosed corresponding structures, and thus asserts the priority date of June 7, 1995, the filing date of U.S. Patent No. 5,822,707 (“Breed '707”). In the alternative, Plaintiff argues that all six corresponding structures are explicitly or inherently disclosed by the '707 and '504 specifications. Plaintiff bears the burden of showing its later-filed continuation-in-part application is entitled to the filing date of a parent. PowerOasis, Inc. v. T-Mobile USA Inc., 522 F.3d 1299, 1305-06 (Fed.Cir.2008).

In the Markman order, the court construed the '029 claim limitation of “an adjustment system arranged to adjust said at least one component” as a means-plus-function claim, and listed six corresponding structures:

-an orifice between an inner bladder and an outer container;

-seat positioning actuators or motors;

-seat and/or headrest motors;

-adjustable airbag inflators, control valves, exit valves, and/or exit orifices;

-seatbelt pretentioner or force limiter;

-inflation combustion chamber and a pressure control system associated with an airbag.

(Dkt. # 41 at 24-27.) The parties here agree that the first five listed corresponding structures are described within the '707 and '504 specifications, and that the sixth is not explicitly contained therein. They disagree as to whether the sixth need be described in order for Plaintiff to gain the benefit of that application’s filing date, and if so, whether the sixth is implicitly described in the '707 and '504 specifications.

The '029 Patent is, like the other patents-in-suit here, part of a large family. Only the most relevant family members are recited here. It is a continuation of the '945 Patent, and a continuation-in-part of Breed '504 and Breed '707. Breed '707 was filed on June 7, 1995, and issued October 13, 1998. Breed '504 was filed on February 8, 2000, and issued August 27, 2002. Finally, the '945 Patent was filed December 11, 2003, and issued July 17, 2007. If the '029 Patent can claim the filing date of Breed '707, or alternatively Breed '504, as its priority date as Plaintiff asserts, then Breed '504 would not be prior art. However, if Defendants are correct that the '029 Patent can only claim the priority date of the '945 Patent, then Breed '504 is invalidating prior art.

A patent’s specification must contain a written description sufficient to enable a person of skill in the art “to make and use” the claimed invention. 35 U.S.C. § 112. The written description and enablement requirements, if unsatisfied, will render a claim invalid. See, e.g., Festo Corp. v. Shoketsu Kinzoku Kogyo Kabushiki Co., 535 U.S. 722, 736, 122 S.Ct. 1831, 152 L.Ed.2d 944 (2002) (“[T]he patent application must describe, enable, and set forth the best mode of carrying out the invention.... The patent also should not issue if the other requirements of § 112 are not satisfied, and an applicant’s failure to meet these requirements could lead to the issued patent being held invalid in later litigation.” (citation omitted)).

A corollary of the rule is that a patent may generally only claim a priority date of the date the patent’s specification was filed. Thus, a patent containing enabled and adequately described claims that issues from a continuation application may claim the benefit of the priority date of its parent application because they share identical specifications; a continuation application may not contain new matter. See 35 U.S.C. § 120; M.P.E.P. § 201.07. However, a patent that issues from a continuation-in-part application — which does not contain a specification identical to that of the parent, M.P.E.P. § 201.08 — may only claim the parent application’s priority date if the parent’s specification satisfies the requirements of § 112 ¶ 1 with respect to the challenged claims. See 35 U.S.C. § 120; M.P.E.P. § 201.11(I)(B) (“Only the claims of the continuation-in-part application that are disclosed in the manner provided by the first paragraph of 35 U.S.C. [§ ]112 in the prior-filed application are entitled to the benefit of the filing date of the prior-filed application.”); see also Kennecott Corp. v. Kyocera Int’l, Inc., 835 F.2d 1419, 1421 (Fed.Cir.1987) (“The incorporation of the requirements of section 112 bito section 120 ensures that the inventor had possession of the later-claimed invention on the filing date of the earlier application. The written description must communicate that which is needed to enable the skilled artisan to make and use the claimed invention. A description that does not meet this requirement is legally insufficient.” (citation omitted)). The strict enforcement of the § 112 ¶ 1 requirements guarantees that a patent applicant utilizing a continuation-in-part application cannot reach an earlier priority date for an invention that is first disclosed by new matter contained within the application. The relevant priority date is determined on a claim-by-claim basis. Lucent Techs., Inc. v. Gateway, Inc., 543 F.3d 710, 718 (Fed. Cir.2008).

Means-plus-function claims must “be construed to cover the corresponding structure, material, or acts described in the specification and equivalents thereof.” 35 U.S.C. § 112 ¶ 6. The corresponding structures described within the specification are necessary to satisfy the definiteness requirement of § 112 ¶2. See Telcordia Techs., Inc. v. Cisco Sys., Inc., 612 F.3d 1365, 1376 (Fed.Cir.2010) (“For a means-plus[-]function claim to satisfy the definiteness requirement, the written description must clearly link or associate structure to the claimed function.”); In re Dossel, 115 F.3d 942, 946 (Fed.Cir.1997); In re Donaldson Co., 16 F.3d 1189, 1195 (Fed.Cir.1994) (en banc). Even if the definiteness requirement is satisfied by the existence of some corresponding structure or structures, the written description of those structures, both as it applies to the written description requirement and the enablement requirement, defines the scope of the means-plus-function claim.

This statement of law, however, is not immediately clear from a review of Federal Circuit case law, and is deserving of a brief detour to justify the court’s reliance on both the enablement and written description requirements in resolving this legal question. The Federal Circuit has clearly stated that “priority policing” does require a court to evaluate the written description requirement.

To satisfy the written description requirement, the disclosure of the earlier filed application must describe the later claimed invention in sufficient detail that one skilled in the art can clearly conclude that the inventor invented the claimed invention as of the filing date sought. While the earlier application need not describe the claimed subject matter in precisely the same terms as found in the claims at issue, the prior application must convey with reasonable clarity to those skilled in the art that, as of the filing date sought, [the inventor] was in possession of the invention .... Compliance with the written description requirement is a question of fact ....

Tech. Licensing Corp. v. Videotek, Inc., 545 F.3d 1316, 1331-32 (Fed.Cir.2008) (emphasis and alteration in original) (internal quotation marks and citations omitted). Of course, to satisfy § 120, an earlier-filed specification must meet all of the requirements of § 112 ¶ 1 — written description, enablement, and best mode — in support of the later-filed claims.

Relatedly, in the context of means-plus-function claims, the Federal Circuit has invoked the written description and definiteness requirements while eschewing the enablement requirement.

The question is not whether one of skill in the art would be capable of implementing a structure to perform the function, but whether that person would understand the written description itself to disclose such a structure. While corresponding structure need not include all things necessary to enable the claimed invention to work, it must include all structure that actually performs the recited function.

Telcordia, 612 F.3d at 1376 (internal quotation marks and citations omitted); accord Aristocrat Techs. Australia Pty Ltd. v. Int’l Game Tech., 521 F.3d 1328, 1336-37 (Fed.Cir.2008). Donaldson and Dossel make clear that the definiteness requirement is satisfied provided there is at least one corresponding structure. Although Telcordia and Aristocrat might be read to state that support for a means-plus-function claim is not a question of enablement, the court finds that the enablement and written description problems are both implicated in discerning whether the parent’s specification provides support for the child’s means-plus-function claim. That is, whether the scope of the claims of a continuation-in-part is adequately supported by a parent’s specification is a question of enablement, as well as one of written description, as additional corresponding structures have the capacity to alter the claimed invention, and thus must be disclosed in order to enable one of ordinary skill in the art to make and use the invention claimed in the continuation-in-part. See, e.g., Sitrick v. Dreamworks, LLC, 516 F.3d 993, 999 (Fed.Cir.2008); Auto. Techs. Int’l, Inc. v. BMW of N. Am., Inc., 501 F.3d 1274, 1285 (Fed.Cir.2007) (“[I]n order to fulfill the enablement requirement, the specification must enable the full scope of the claims ....”); Callicrate v. Wadsworth Mfg., Inc., 427 F.3d 1361, 1375 (Fed. Cir.2005); see also Anascape, Ltd. v. Nintendo of Am., Inc., 601 F.3d 1333, 1342 (Fed.Cir.2010) (Gajarsa, J., concurring) (discussing preference for use of written description requirement as a “priority policing” mechanism while leaving enablement requirement as the “preferred vehicle for invalidating claims.”).

Therefore, for means-plus-function claims of a continuation-in-part to claim the priority date of its parent, the claims will satisfy the written description and enablement requirements of § 112 only if the construed corresponding structures are present in the parent’s specification. The primary issue here is whether each and every corresponding structure must be present in the parent’s application; if the answer to that question is “yes,” the secondary question is whether there is a genuine dispute of material fact over whether the '707 or '504 specifications implicitly disclose the sixth corresponding structure.

The parties disagree over the interpretation of several Federal Circuit cases that address the issue of whether a later-filed means-plus-function claim is enabled and adequately described if not all of the corresponding structures are disclosed in the earlier-filed specification. A review of four of these cases and the parties’ arguments suffices to lead the court to the conclusion that a parent application must disclose all of the corresponding structures of a claim from a continuation-in-part application in order for the patent that issues from that application to trace its priority date back to the parent.

In B. Braun Med., Inc. v. Abbott Labs., 124 F.3d 1419 (Fed.Cir.1997), the court construed a means-plus-function claim to cover the single corresponding structure of a “traverse cross bar.” 124 F.3d at 1425. The court affirmed the jury verdict on the issue of noninfringement, finding that the accused device did not contain the cross bar. Id.

In Lucent, claim 4 was the only means-plus-function claim at issue. Lucent asserted the claim was entitled to a 1988 priority date, which would allow the claim to avoid prior art, though the district court had found the claim could only reach back to a 1992 priority date. 543 F.3d at 718-19. The court rejected Lucent’s argument that the claimed invention was entitled to more than two corresponding structures, the DSP and VLSI. Id. Because neither of these two corresponding structures was found in the putative parent’s specification, the court held that claim 4 could only have the 1992 priority date. Id. at 719.

Defendants argue that Lucent and Braun should be read to state that each and every corresponding structure linked to a means-plus-function claim must be present to satisfy the enablement and written description requirements of § 112 in order to allow a continuation-in-part to reach an earlier priority date. Plaintiff counters that the cases only state that where none of the corresponding structures are present, § 112 will not be satisfied.

A third case, Callicrate v. Wadsworth Mfg., Inc., 427 F.3d 1361 (Fed.Cir.2005), concerned animal castration tool patents. A jury found the patents-in-suit invalid and not infringed. 427 F.3d at 1363. The district court denied a motion for judgment as a matter of law, id., finding that the patents-in-suit could not claim the benefit of a parent’s priority date, even though the parent described the construed “winding” mechanism corresponding to a means-plus-function limitation, because it only described the “caulking gun” mechanism means in a “disparaging” manner in the background section of the specification, and therefore did not satisfy the enablement requirement. Id. at 1364-66. The Federal Circuit reversed the denial of the motion for judgment as a matter of law, finding the infringed patents were entitled to the earlier priority date, because both mechanisms were enabled by the parent’s specification, regardless of the location or disparaging nature of the remarks. Id. at 1373-75.

The final case discusses analogous § 112 issues outside of the context of means-plus-function claims. In Anascape, Ltd. v. Nintendo of Am., Inc., 601 F.3d 1333 (Fed. Cir.2010), cert. denied, — U.S.-, 131 S.Ct. 520, 178 L.Ed.2d 373 (2010), the Federal Circuit reviewed a jury’s judgment of infringement awarded to Anascape against Nintendo in a jury trial over patents on certain “hand-operated controllers.” 601 F.3d at 1334. Anascape’s infringed patent was a continuation-in-part of a prior application that also resulted in an issued patent, and Anascape’s claim of infringement hinged on whether the infringed patent could trace its priority back to its parent application. Id. The Federal Circuit reversed the judgment, finding that the parent application disclosed only a “single input” controller, and not a “multiple input” controller as was claimed in the infringed patent. Id. at 1340-41. Therefore, the allegedly infringed patent could not claim priority to the parent application because the parent’s specification failed to satisfy the written description requirement. Id.

Anascape does not directly address the question before the court. It treats whether the absence of a particular embodiment bars the use of an earlier priority date because the written description or enablement requirements are not satisfied, rather than whether the absence of a particular corresponding structure bars the use of an earlier date where means-plus-function claims are at issue. But it is instructive nonetheless by analogy: corresponding structures may be found in embodiments listed within the specification. See Lucent, 543 F.3d at 719 (referring to corresponding structures in patent specification as embodiments). Callicrate stands for the proposition that the earlier date may be reached where all corresponding structures are present in the parent, a proposition to which all parties agree. Anascape stands for the inverse: the earlier date may not be reached where even one embodiment is missing. Taken together, these cases support the rule that each and every embodiment or corresponding structure of a claimed invention must be present in a parent’s specification in order for the patent that issued from the continuation-in-part to satisfy the enablement and written description requirements of § 112.

Plaintiff takes a narrower view of these latter two cases. Plaintiff concedes that where means-plus-function claims are at issue, the parent’s date may not be used if no corresponding structure is present in the specification, but urges the court to adopt a rule allowing the absence of a corresponding structure to be ignored if the allegedly infringing invention does not read upon that corresponding structure. Plaintiff attempts to distinguish Anascape in that the specification at issue there contained only two embodiments, rather than the six corresponding structures at issue here.

The court agrees with Defendants that such a rule could lead to absurd results, where the priority date of a claim would depend on the invention challenging the validity of the patent. Under that rule, where the invention reads upon the missing corresponding structure, the prior art would be limited to a later p