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Recapture Rule Applies to Subject Matter Surrendered to Overcome § 101 Rejection

by Paul Devinsky | Aug 18, 2022 | Patents

Affirming a Patent Trial & Appeal Board (Board) decision, the US Court of Appeals for the Federal Circuit held, for the first time, that the rule prohibiting recapture of subject matter surrendered during prosecution applies to subject matter surrendered to overcome a § 101 patent eligibility rejection. In re McDonald, Case No. 21-1697 (Fed. Cir. Aug. 10, 2022) (Newman, Stoll, Cunningham, JJ.)

During prosecution of a parent patent application relating to displaying search results, the inventor, John McDonald, added a “processor” limitation to certain claims to overcome a § 101 rejection. McDonald subsequently filed a continuation application, which was eventually issued. McDonald then filed a reissue application seeking to broaden the claims of the continuation patent by striking all of the originally added “processor” claim language. With the reissue application, he included a declaration that the processor language was unnecessary to the patentability and operability of the relevant claims. The examiner rejected the claims as obvious, and McDonald appealed. On appeal, the Board affirmed the obviousness rejection and also rejected the reissue claims as being based on a defective declaration lacking a correctable error. The Board found that McDonald was impermissibly attempting to recapture surrendered subject matter. McDonald appealed.

Exercising de novo review, the Federal Circuit first recounted more than a century of caselaw relating to patent reissue and recapture. The Court explained that a patent may be reissued if the inventor erroneously claimed less than they had a right to claim in the original patent, but that the recapture rule bars a patentee from regaining that which was surrendered during prosecution. The Court then turned to its three-step recapture analysis in which it considers the following:

Whether, and in what aspect, the reissue claims are broader than the patent claims
If broader, whether those broader aspects of the reissue claim relate to the surrendered subject matter
If they do, whether the surrendered subject matter has crept into the reissue claim.

Applying this test, the Court concluded that McDonald sought to broaden his claims and that the surrendered subject matter crept into those broadened claims. The Court also held that McDonald did not meet the reissue statute’s “error” requirement, finding that his actions were deliberate as opposed to inadvertent or by mistake.

The Federal Circuit then addressed McDonald’s arguments that the recapture rule does not apply to subject matter surrendered to overcome a § 101 rejection. The Court conceded that its previous decisions centered on prior art rejections under § 102 and § 103 but found that the public’s reliance interest on a patent’s public record must also apply to subject matter surrendered under § 101. The Court also reiterated that it “reviews a patent family’s entire prosecution history when applying both the rule against recapture and prosecution history estoppel.” The Court thus affirmed the Board’s decision barring McDonald from reclaiming subject matter previously surrendered during prosecution.

Too Little Too Late: No Tenable Misappropriation Claim Based on 11-Year-Old Prototype

by Tessa Kroll | Aug 11, 2022 | Trade Secrets

In a dispute between an employer and a former employee, the US Court of Appeals for the Seventh Circuit affirmed a district court’s grant of summary judgment against an employer asserting trade secret misappropriation and breach of implied-in-fact contract claims relating to an 11-year-old prototype developed by a former employee. The Court also affirmed the district court’s finding of litigation misconduct by the former employer but vacated the lower court’s award of attorneys’ fees, remanding the case for a more detailed justification for the considerable award. REXA, Inc. v. Chester, Case Nos. 20-2953; -3213; -2033 (7th Cir. July 28, 2022) (Wood, Hamilton, Brennan, JJ.)

Mark Chester is a former employee of Koso America, a manufacturer of hydraulic actuators. Chester participated in a 2002 project at Koso that sought to develop a new flow matching valve for Koso’s actuators. While the project team failed to design a new flow matching valve, they did manage to develop an experimental prototype of an actuator with solenoid valves. Koso abandoned the new design because of the improbability of commercial success, and the prototype was disassembled. Chester—who had never signed a confidentiality or employment agreement with Koso—resigned from Koso in 2003 and later joined MEA Inc. in 2012. In 2013, 11 years after developing the Koso prototype, Chester helped MEA design a new actuator with solenoid valves and an improved motor. MEA filed a patent application in 2017 claiming the actuator, and the US Patent & Trademark Office issued a notice of allowance in 2018 based on the improved motor limitations.

REXA, a successor company to Koso, sued Chester and MEA for misappropriation under the Illinois Trade Secrets Act (ITSA) and for breach of an implied-in-fact contract. REXA alleged that MEA and Chester misappropriated the 2002 designs by filing the 2017 patent application and by incorporating the 2002 designs into MEA’s Hawk brand actuator, and that Chester breached an implied-in-fact obligation to assign any patent rights associated with the 2017 application to REXA. Chester and MEA accused REXA of improper conduct during discovery after REXA appended a confidentiality agreement that Chester had never received to Chester’s 2002 bonus letter and used the manipulated document during Chester’s deposition. The parties filed cross motions for summary judgment. The district court ruled for Chester and MEA and awarded them almost $2.4 million in attorneys’ fees for REXA’s litigation misconduct. REXA appealed.

Misappropriation of Trade Secrets

The Seventh Circuit first considered the trade secret misappropriation claim, specifically whether REXA had identified a trade secret with enough specificity. The ITSA requires that a plaintiff “present a specific element, or combination of elements, that is unknown to the trade and was allegedly misappropriated.” Applying this standard, the Court found that REXA had not identified any protectable trade secrets because it had broadly asserted that the “2002 designs” qualified as trade secrets without explicitly identifying an element that was not well known in the industry.

The Seventh Circuit further concluded that even if REXA had identified a specific and protectable trade secret, [...]

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Rage against the Machine: Inventors Must Be Human

by Amol Parikh | Aug 11, 2022 | Patents

The US Court of Appeals for the Federal Circuit found that an artificial intelligence (AI) software system cannot be listed as an inventor on a patent application because the Patent Act requires an “inventor” to be a natural person. Thaler v. Vidal, Case No. 21-2347 (Fed. Cir. Aug. 5, 2022) (Moore, Taranto, Stark, JJ.)

Stephen Thaler develops and runs AI systems that generate patentable inventions, including a system that he calls his “Device for the Autonomous Bootstrapping of Unified Science” (DABUS). In 2019, Thaler sought patent protection for two of DABUS’s putative inventions by filing patent applications with the US Patent & Trademark Office (PTO). Thaler listed DABUS as the sole inventor on both applications. The PTO found that the patent applications lacked valid inventorship and sent a Notice of Missing Parts requesting that Thaler identify a valid inventor. Thaler petitioned the director to vacate the notices. The PTO denied the petitions, explaining that a machine does not qualify as an inventor and that inventors on patent applications must be natural persons. Thaler then pursued judicial review in the district court. The district court agreed with the PTO, concluding that an “inventor” under the Patent Act must be an “individual,” and that the plain meaning of “individual” is a natural person. Thaler appealed.

The sole issue on appeal was whether an AI software system can be an “inventor” under the Patent Act. The Federal Circuit started with the statutory language of the Patent Act, finding that it expressly provides that inventors are “individuals.” The Court noted that while the Patent Act does not define “individual,” the Supreme Court has explained that the term “individual” refers to a human being unless there is some indication that Congress intended a different reading. The Federal Circuit also found that this result was consistent with its own precedent, which found that neither corporations nor sovereigns can be inventors; instead only natural persons can be inventors.

The Federal Circuit rejected Thaler’s policy argument that inventions generated by AI should be patentable to encourage innovation and public disclosure. The Court found that these policy arguments were speculative, lacked any basis in the text of the Patent Act, and were contrary to the unambiguous text of the Patent Act. The Court also rejected Thaler’s reliance on the fact that South Africa has granted a patent with DABUS as an inventor, explaining that the South African Patent Office was not interpreting the US Patent Act. The Court concluded that since Congress has determined that only a natural person can be an inventor, AI cannot be an inventor.

Practice Note: The Federal Circuit’s decision comes on the heels of a decision from the US Copyright Office Review Board finding that a work must be created by a human being to obtain a copyright. The Federal Circuit also noted that it was not confronted with the question of whether inventions made by human beings with the assistance of AI are eligible for patent protection.

Don’t Dew It: Second Circuit Cans Likelihood of Confusion Argument

by Vincent Li, PhD | Aug 11, 2022 | Trademarks

The US Court of Appeals for the Second Circuit reversed and vacated a district court’s preliminary injunction grant because the district court erred in assessing the strength of a trademark. RiseandShine Corporation v. PepsiCo, Inc., Case No. 21-2786 (2d Cir. July 22, 2022) (Leval, Chin, Menashi, JJ.)

Rise Brewing began selling canned coffee under the registered mark “RISE” in 2016. The registered mark consists of the word “rise” in large, red, regular capital letters with the words “Brewing Co.” below in a smaller, similar font on a horizontal line. The mark appears on every bottle of Rise Brewing’s canned coffee products.

In March 2021, PepsiCo launched a canned energy drink product under the mark “MTN DEW RISE ENERGY,” which contains the word “rise” on the top of each can, followed by the word “energy” running vertically up its side in a much smaller font and the MTN DEW house mark above the word “rise.”

Rise Brewing filed a complaint for trademark infringement and filed a motion for a preliminary injunction to enjoin PepsiCo from using or displaying the challenged in the market pending trial. The district court granted the motion, finding that Rise Brewing was likely to succeed on the merits regarding likelihood of confusion. PepsiCo appealed.

The Second Circuit explained that the party seeking a preliminary injunction over the use of a trademark can meet the likelihood of success prong of the preliminary injunction standard by showing that a significant number of consumers are likely to be misled or confused as to the source of the products in question. Here, the district court found that there would be a likelihood of reverse confusion—that consumers would mistake Rise Brewing’s coffee products (the prior user) as Mountain Dew products (the subsequent user). The Court disagreed and reversed, finding that the district court erred in the evaluation of the most important factor: strength of the mark.

The strength of a trademark is assessed based on either or both of two components:

The degree to which it is inherently distinctive
The degree to which it has achieved public recognition in the marketplace.

Although the Second Circuit agreed with the district court that the RISE trademark was a suggestive mark, it disagreed on the extent to which it was distinctive. The Court explained that “[t]he district court failed to note that the strong logical associations between ‘Rise’ and coffee represent weakness and place the mark at the low end of the spectrum of suggestive marks.” Because of the legal element in determination of the strength of a given mark, the district court’s mistake constituted a legal error.

The Second Circuit found that the lack of distinctiveness in using the term “rise” to describe coffee products can be demonstrated by [...]

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PTO Issues Notice on Duties of Disclosure and Reasonable Inquiry

by Amol Parikh | Aug 11, 2022 | Patents

The US Patent & Trademark Office (PTO) issued a notice on July 29, 2022, titled “Duties of Disclosure and Reasonable Inquiry During Examination, Reexamination, and Reissue, and for Proceedings Before the Patent Trial and Appeal Board.” The notice comes in response to US President Joe Biden’s July 9, 2021, executive order on Promoting Competition in the American Economy, and to a September 9, 2021, letter from Senators Patrick Leahy (D-VT) and Thom Tillis (R-NC), who requested that the PTO “take steps to reduce patent applicants’ making inappropriate conflicting statements in submissions to the [PTO] and other federal agencies.”

PTO Director Vidal explained in the notice that parties involved in proceedings before the PTO should not take a position about the patentability of the claims that is inconsistent with positions taken in submissions to other government agencies regarding the same subject matter. If a party to a PTO proceeding discovers that an earlier position taken in a submission to the PTO or another government agency was incorrect or inconsistent with other statements made by the party, the party must promptly correct the record.

When an examiner has a reasonable basis to conclude that an individual identified under 37 CFR 1.56(c) or any assignee has information that would aid in the examination of the application or treatment of some matter, the examiner may require submission of information that is not necessarily material to patentability. This requirement could include statements made or information submitted to other government agencies, such as the US Food & Drug Administration (FDA).

Any party presenting a paper to the PTO has a duty to perform an inquiry that is reasonable under the circumstances. This reasonable inquiry may comprise a review of documents that are submitted to or received from other government agencies, including the FDA. If any reviewed document is material to the patentability of a pending matter before the PTO, the party has a duty to submit the information to the PTO.

Each individual with a duty to disclose, or each party with a duty of reasonable inquiry, should ensure that statements made to the PTO and other government agencies, or any statements made on their behalf to other government agencies regarding the claimed subject matter, are consistent. Providing material information to other government agencies, including the FDA, while simultaneously withholding the same information from the PTO violates those duties.

Further, any individual with a duty to disclose, or any party with a duty of reasonable inquiry, should review documents it receives from other government agencies to determine whether the information should be submitted to the PTO. For example, a party receiving a paragraph IV certification related to a generic drug application (e.g., an Abbreviated New Drug Application (ANDA)) should review such documents to determine whether they are material to the patentability of any pending matters before the PTO. If any information that is part of the ANDA process is deemed material to patentability in a pending PTO matter, then such [...]

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In the Weeds? Humira “Patent Thicket” Isn’t an Antitrust Violation

by Alexandra Lewis | Aug 11, 2022 | Antitrust, Patents

The US Court of Appeals for the Seventh Circuit affirmed that welfare benefit plans that bought the drug Humira did not have valid antitrust claims against the patent owner. The Court found that amassing patents by itself is not enough to give rise to an antitrust claim, and that the welfare benefit plans would need to prove that the patents were invalid. Mayor and City Council of Baltimore, et al. v. AbbVie Inc., et al., Case No. 20-2402 (7th Cir. Aug. 1, 2022) (Easterbrook, Wood, Kirsch, JJ.)

AbbVie owns a patent covering Humira, which is a drug used to treat arthritic and inflammatory diseases. Humira is not covered by the Hatch-Waxman Act because it is a biologic drug, rather than a synthetic drug. Biologics are covered by the Biologics Price Competition and Innovation Act (BPCIA), under which a competitor must ask the US Food and Drug Administration for permission to sell a “biosimilar” drug based on certain guidelines. From the first sale of the original drug, the competitor must wait 12 years to enter the market. If the original drug seller believes that a patent blocks competition and initiates litigation, the competitor is still free to sell its biosimilar drug. The competitor sells at risk of an adverse outcome in the litigation.

The original Humira patent expired in 2016, but AbbVie obtained 132 additional patents related to the drug. After the 12-year BPCIA requirement passed, none of AbbVie’s competitors chose to launch a biosimilar. Instead, competitors settled with AbbVie on terms to enter the US market in 2023. In exchange, AbbVie agreed that enforcement of all 132 of its patents would end in 2023 even if they were not set to expire.

Welfare benefit plans that pay for Humira on behalf of covered beneficiaries accused AbbVie of violating Sections 1 and 2 of the Sherman Antitrust Act. The payors argued that AbbVie’s settlements with potential competitors established a conspiracy that restrained competition in violation of Section 1, and that AbbVie’s “patent thicket” allowed AbbVie to reap unlawful monopoly profits from Humira after expiration of the original patent in violation of Section 2. The district court dismissed the complaint. The payors appealed.

The issue on appeal with respect to Section 2 was whether the payors had to prove that all of AbbVie’s Humira-related patents were invalid. Under the Walker Process antitrust doctrine, a party may be liable for an antitrust violation if it knowingly asserts a fraudulently procured patent in an attempt to monopolize a market. The payors did not argue that all 132 of AbbVie’s patents were fraudulent. The Seventh Circuit reasoned that because the patent laws do not set a cap on the number of patents a person (or company) can hold, the payors would need to prove that each of AbbVie’s 132 Humira-related patents were invalid to succeed in showing a violation under Section 2. Not only did the payors fail to prove that all 132 patents were invalid, but they did not even offer to do so. [...]

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Argument Forfeit in Remand Notwithstanding Modified Claim Construction

by Tim Dunker | Aug 4, 2022 | Patents

In the second appeal arising from an inter partes review (IPR), the US Court of Appeals for the Federal Circuit found that its revised claim construction from the first appeal did not permit the patent challenger to raise a new argument in a remand proceeding at the Patent Trial & Appeal Board (Board) since the patent owner’s response in the original proceeding had sufficiently put the challenger on notice of the claim construction that was adopted in the first appeal. Wireless Protocol Innovations, Inc. v. TCT Mobile, Inc., Case No. 21-2112 (Fed. Cir. July 19, 2022) (Prost, Taranto, Chen, JJ.)

Wireless Protocol Innovations (WPI) owns a patent related to controlling data flow in a point-to-multipoint communications system. WPI filed a district court complaint in 2015 asserting the patent against TCT. In response, TCT filed IPR petitions challenging certain claims of the patent. The petition presented three grounds of unpatentability, one of which relied on a reference by Sen. TCT’s petition did not propose constructions for any claim terms and argued that Sen taught the “grant pending absent state” limitation of the challenged patent. WPI argued that Sen failed to disclose “transitioning” between the “grant pending absent” and “grant pending” states after a “subsequent bandwidth grant,” as required by the claims. In its reply, TCT maintained that Sen taught the limitation but never argued that Sen could be readily modified to include a “grant pending absent state.” The Board found all of the challenged claims to be unpatentable on two grounds, one of which relied on Sen. WPI appealed.

The Federal Circuit reversed the Board’s decision with respect to the first ground, vacated the Board’s decision relying on Sen because the Board applied a flawed claim construction of “grant pending absent state,” and remanded the IPR for the Board to reconsider in view of the Court’s new claim construction. The Court also specifically declined to “prejudge what arguments TCT has properly preserved or should now be permitted to advance or what determinations as to Sen, Rydnell, and admitted prior art are supported by the evidence.”

On remand, the Board allowed the parties to submit additional briefing and expert testimony limited to the issue of whether Sen described operating a consumer premises equipment (CPE) in a “grant pending absent state” as interpreted by the Federal Circuit. TCT maintained its argument that Sen disclosed a grant pending absent state and argued for the first time that, in the alternative, it would have been obvious to a person skilled in the art to modify Sen to meet the limitation. The Board issued a remand decision finding the challenged claims unpatentable. Again, WPI appealed.

The Federal Circuit found that TCT had failed to preserve its new claim construction and obviousness argument and that “failure to timely assert a right or raise an argument constitutes forfeiture.” The Court explained that TCT acknowledged that it understood, prior to its reply, that WPI sought to distinguish the claimed “grant pending absent state” from Sen because Sen involved some [...]

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Seeing Starz: No Damages Bar in Copyright Discovery Rule Case

by Jodi Benassi | Aug 4, 2022 | Copyrights

The US Court of Appeal for the Ninth Circuit affirmed a district court’s denial of a motion to dismiss copyright infringement claims as barred by the statute of limitations, affirming the copyright owner’s right to sue even though more than three years had passed since the alleged infringement occurred. Starz Entertainment, LLC v. MGM Domestic Television Distribution, LLC, Case No. 21-55379 (9th Cir. July 14, 2022) (Wardlaw, Ikuta, Bade, JJ.)

Starz entered into licensing agreements for movies and television series episodes with MGM in 2013 and 2015. Under the agreements, MGM granted Starz the exclusive right to exhibit the movies and television series episodes for specified time periods. MGM agreed that it would not exhibit or license the content to any third parties during such specified time periods. From 2019 to 2020, Starz discovered that certain content it licensed from MGM was available on other streaming platforms.

Starz sued MGM in May 2020, asserting 340 claims of direct, contributory and vicarious copyright infringement, among other claims. MGM moved to dismiss, arguing that Starz’s copyright infringement claims were barred by the Supreme Court’s 2014 decision in Petrella v. MGM. MGM asserted that Petrella imposes a strict bar to collecting any damages for copyright infringement that occurs more than three years prior to the filing of the complaint. The district court determined that Petrella did not affect the discovery rule (i.e., that under the Copyright Act there exists a three-year damages bar) except when the plaintiff reasonably was not aware of the infringements at the time they occurred. MGM filed an interlocutory appeal.

The Copyright Act states: “No civil action shall be maintained under the provisions of this title unless it is commenced within three years after the claim accrued.” The issue on appeal here was when a copyright infringement claim accrues. The Ninth Circuit noted that it, and every other circuit, has an exception to the infringement rule, known as the “discovery rule,” which starts the clock when a copyright holder knows or reasonably should know that an infringement occurred. The Court disagreed with MGM that Petrella did away with the discovery rule. Instead, the discovery rule of accrual copyright claims is alive and well, and thus the Court affirmed the district court’s finding that Starz was not barred by Petrella from bringing a lawsuit.

The Ninth Circuit next addressed the issue of whether Petrella imposed a damages bar separate from the statute of limitations. MGM argued that Petrella created a separate damages bar that limits damages to damages arising from acts of infringement within the three-year window. The Court found that a three-year lookback period would eviscerate the discovery rule and explained that MGM’s approach is a textbook example of the absurdity of such a rule. The agreements between Starz and MGM covered hundreds of titles under separate time periods, and under MGM’s approach, damages could only be recovered for a 2013 infringement if the complaint was filed by 2016. In this case, Starz did not discover [...]

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Holdover Trademark Licensee Status Can’t Do Heavy Lifting on “Exceptionality”

by Brennen Baylor | Aug 4, 2022 | Trademarks

The US Court of Appeals for the Sixth Circuit addressed issues of enhanced remedies in a dispute regarding the sale of weightlifting equipment beyond the expiration of a licensing agreement between the involved parties. Pointing to the different standard required to prove a violation and damages, the Court ultimately reduced a trademark infringement award to about a quarter of the amount initially awarded. Max Rack, Inc. v. Core Health & Fitness, LLC, et al., Case No. 20-3598 (6th Cir. July 14, 2022) (Cole, Rogers, Murphy, JJ.)

In 2006, Max Rack exclusively licensed its patents and trademarks relating to weightlifting racks to Star Trac Strength. Core Health subsequently acquired Star Trac and its licensing agreements. The final patent covering the Max Rack equipment expired on November 21, 2015, thereby terminating the licensing agreements between Max Rack and Core Health. The agreements permitted Core Health to sell any remaining Max Rack units for six months following expiration of the license.

Following expiration of the licensing agreements, Max Rack learned that Core Health failed to update web pages, marketing materials and owner’s manuals to reflect the termination of Core Health’s affiliation with Max Rack. Core Health’s failure to scrub references to “Max Rack” extended to third-party sellers’ websites advertising Core Health’s competing “Freedom Rack” product using the Max Rack name. Core Health also sold 271 more units manufactured as Max Racks after the license expired, 238 of which were sold during the six-month grace period. Of the remaining 33 units, 24 were sold after the six-month window had closed, and nine were alleged to have had their labels changed from Max Rack to Core Health’s Freedom Rack. Core Health further failed to pay Max Rack royalties for any of the 271 sales made after the license expired.

Max Rack brought two federal claims under 15 U.S.C. §§ 1114(1)(a) and 1125(a)(1)(A), alleging trademark infringement and unfair competition. Max Rack also brought three claims under Ohio’s Deceptive Trade Practices Act, alleging that Core Health passed off the Max Rack as its own machine and caused a likelihood of confusion regarding the source of the machine and regarding Core Health’s affiliation with the Max Rack trademark. The jury awarded Max Rack $1 million in damages and $250,000 in Core Health’s profits. Ruling on post-trial motions, the district court overturned the $1 million damages award for lack of evidence of any consumer confusion but enhanced the $250,000 award to $500,000 and further awarded Max Rack attorneys’ fees. Both parties appealed.

The Sixth Circuit sidestepped the fact-laden analysis to determine whether Core Health’s actions created a likelihood of consumer confusion, reasoning that the dispute related to the “holdover licensee.” Citing its own precedent and precedent from the Third, Fifth, Seventh and Eleventh Circuits, the Court applied a much more objective standard, finding that unauthorized use of a licensed trademark by a licensee after the license has expired is by itself sufficient to establish a likelihood of confusion in the mind of the consumer.

Although the Sixth Circuit used [...]

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Claim Construction Error Fuels Remand

by Paul Devinsky | Aug 4, 2022 | Patents

The US Court of Appeals for the Federal Circuit vacated and remanded a district court’s noninfringement decision, finding that the district court improperly construed the asserted claims as requiring a dual-fuel system. Ethanol Boosting Sys., LLC v. Ford Motor Co., Case No. 21-1949 (Fed. Cir. July 18, 2022) (Moore, Hughes, JJ.) (Newman, J., dissenting) (non-precedential).

Ethanol Boosting Systems (EBS) filed suit against Ford for infringement of three patents relating to fuel management systems for spark ignition engines that include both a direct injection and a port fuel injection fueling system. During claim construction, Ford argued that the direct injection fuel system required “a fuel that contains an anti-knock agent . . . that is different from the fuel used for port injection.” The district court agreed with Ford, relying on the patents’ titles, figures and background sections. The district court noted that no figures depicted a single fuel engine, and that the specification repeatedly referenced direct injection of a non-gasoline fuel, such as ethanol, into a gasoline engine. The district court acknowledged that the specification made a singular reference to a 100% ethanol embodiment but found that this disclosure did not teach a single fuel engine and that it was in the context of a dual-fuel engine. In view of this construction, the parties stipulated to judgment of noninfringement. EBS appealed.

Reviewing claim construction de novo, the Federal Circuit found that nothing in the asserted claim language required the use of different fuels in the direct-injection and port-injection systems. The Court also found that the specification imposed no such requirement, relying on one embodiment that disclosed “100% of the fuel . . . come[s] from ethanol with a smaller fraction being port injected.” The Court rejected Ford’s citation to multiple passages requiring the use of two fuels, finding that those statements could not describe the invention as a whole because they did not describe all embodiments (namely, the aforementioned 100% ethanol embodiment). Ford also cited to an earlier Federal Circuit decision in which family members of the asserted patents were construed to require dual fuels. The Court disagreed, concluding that those patents had different specifications that did not disclose the 100% ethanol embodiment. The Court finally turned to the prosecution history of a different patent family member that has the same specification as the asserted patents. In that application’s prosecution history, the patent holder distinguished a prior art reference on the ground that it only used a single fuel type. The Court declined to import such a limitation from a statement made in that prosecution history because it did not reflect the claim language. The Court concluded that the district court erred in construing the claims to require a dual-fuel system and remanded the case for further proceedings.

Judge Newman issued a stinging dissent, taking the panel majority to task for departing from what she regarded as settled claim construction law. She agreed with the district court that the 100% ethanol example, considered in context, was “merely discussing how this [...]

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