IP UPDATE
Exploring the latest in intellectual property law
IP UPDATE
Exploring the latest in intellectual property law
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The Best Option Is Obviously Not the Only Option

by | Jun 22, 2023 |

Following a jury verdict finding infringement of two patents and awarding $2.2 billion, the Patent Trial & Appeal Board issued a final written decision finding all claims in one of the asserted patents invalid. The Board explained that an asserted prior art combination only needs to be a suitable option, not the best option. Patent Quality Assurance, LLC v. VLSI Tech. LLC, Case No. IPR2021-01229 (June 13, 2023) (Giannetti, McNamara, Melvin, APJs).

In March 2021, a jury found that Intel infringed two patents owned by VLSI. On July 7, 2021, Patent Quality Assurance filed an inter partes review petition against all claims of one of the patents Intel was found to infringe. The Board instituted review. After institution, Intel filed an identical petition and motion for joinder, both of which were granted.

The challenged patent is directed to a method of determining the minimum operating voltage for integrated-circuit memory, storing the value of that voltage in nonvolatile memory, and using the value to determine when an alternative power-supply voltage may be switched to the memory to ensure that the minimum operating voltage is met. Intel challenged the claims of the patent based primarily on a combination of three prior art references.

VLSI raised numerous arguments for why the combination of prior art references did not teach the claimed invention. VLSI argued that a skilled artisan would not have had reason to regulate the power supply voltage of one reference with the voltage regulator of another. VLSI asserted that there would have been no need to use the switching mechanism if voltage regulation was available from the outset. The Board disagreed and quoted the US Court of Appeals for the Federal Circuit’s 2022 decision in Intel v. Qualcomm, which stated that “a petitioner is required to show only that there is something in the prior art as a whole to suggest the desirability of making the combination, not whether there is something in the prior art as a whole to suggest that the combination is the most desirable combination available.”

The Board reiterated this theme in response to another of VLSI’s arguments. VLSI contended that a person of skill in the art would not have combined the prior art disclosure of a system for determining minimum operating voltages and storing them in nonvolatile memory with a reference that uses SRAM, a type of volatile memory commonly used as an alternative to nonvolatile memory. The Board again noted that “there is no requirement that an asserted combination is the best option, only that it be a suitable option.”

Given the jury’s verdict and damages award in the district court case, VLSI also argued that the jury’s verdict showed commercial success and was objective indicia of nonobviousness. As part of its analysis, the Board reiterated that the nexus between the alleged commercial success and the asserted patent claims must be both embodied by the commercial product and coextensive with them. The Board went on to find that “the record before [the Board] does [...]

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“TRUMP TOO SMALL” Trademark Decision Heads to Supreme Court

by | Jun 15, 2023 | ,

The Supreme Court agreed to review the US Patent & Trademark Office’s (PTO) challenge to a February 2022 ruling by the US Court of Appeals for the Federal Circuit. In the ruling at issue, the Federal Circuit held that applying Sec. 2(c) of the Lanham Act (which bars registration of a trademark that consists of or comprises a name of a particular living individual without their written consent) may unconstitutionally restrict free speech in violation of the First Amendment in certain instances. Vidal v. Elster, Docket No. 22-704 (Supr. Ct., June 5, 2023).

In 2018, Steve Elster filed an application to register the mark TRUMP TOO SMALL for use on t-shirts, in reference to a 2016 Republican presidential primary debate exchange between then-candidate Donald Trump and Senator Marco Rubio (R-FL). The PTO examining attorney and subsequently the Trademark Trial & Appeal Board refused registration of the mark on grounds that it clearly referred to former President Trump, and that Elster did not have written consent to use former President Trump’s name, in violation of Sec. 2(c) of the Lanham Act. On Elster’s appeal, the Federal Circuit ruled that the Board’s refusal to register the trademark TRUMP TOO SMALL for use on t-shirts involved content-based discrimination that was not justified by a compelling or substantial government interest.

Following PTO Director Vidal’s January 2023 petition for a writ of certiorari, the Supreme Court granted cert and will consider whether the First Amendment allows content-based but viewpoint-neutral restrictions on which trademarks may be registered—and in this case, the PTO’s restriction on marks that consist of or comprise a name identifying a particular living individual (such as former President Donald Trump) except by their written consent.

The issue on which cert was granted: Whether the refusal to register a trademark under 15 U.S.C. § 1052(c) violates the free speech clause of the First Amendment when the mark contains criticism of a government official or public figure.



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Absent Nexus Secondary Considerations Come in Second

by and | Jun 15, 2023 |

Addressing the nexus between a secondary consideration and the claimed invention in assessing obviousness, the US Court of Appeals for the Federal Circuit reversed a Patent Trial & Appeal Board finding of nonobviousness because the Board erred in its nexus analysis regarding secondary considerations. Yita LLC v. MacNeil IP LLC, Case Nos. 22-1373; -1374 (Fed. Cir. June 6, 2023) (Taranto, Chen, Stoll, JJ.)

Yita petitioned for inter partes review (IPR) of all claims of two patents. The patents share a common specification and cover vehicle floor trays that are theraformed from a polymer sheet of substantially uniform thickness. These trays (illustrated below) were designed to closely conform to the walls of the vehicle foot well so that the trays would stay in place once installed.

The Board found that the claims of one of the patents were not obvious even though an artisan would have been motivated to combine the prior art asserted (which disclosed the “close conformance” limitation) and would have had a reasonable expectation of success because the evidence of secondary considerations was overpowering and included a nexus between the evidence of success and the patented invention. The Board also found that the claims of the other patent were not obvious because the “1/8 inch limitation” regarding the thickness of the foot well was not disclosed in the prior art. The Board declined to consider Yita’s argument, which was raised for the first time in its reply brief. Yita appealed.

Yita argued that the Board committed a legal error in its analysis of the secondary consideration evidence for the first patent and abused its discretion by not considering the argument Yita raised in its reply brief regarding the other patent.

On the secondary considerations issue, the Federal Circuit explained that the Board erred in finding a nexus between the secondary consideration evidence of success and the claimed invention because the Board exclusively related to a feature that was well-known in the prior art (i.e., the close conformance between the tray and the vehicle floor). The Court explained that where the prior art teaches a well-known feature and an artisan would have been motivated to combine such prior art with an expectation of success, any secondary consideration that is exclusively related to the well-known feature will not rescue the claim from obviousness. The Court noted that while secondary considerations can be linked to an individual element of the claimed invention or to an inventive combination of elements, here the Board relied on secondary consideration evidence that was related entirely to the already well-known close conformance of the tray and vehicle floor.

The Federal Circuit next addressed Yita’s argument that the Board should have considered an argument raised in Yita’s reply brief regarding the 1/8-inch limitation. Yita failed to raise the argument that it would have been obvious to modify a prior art reference to arrive at the “1/8 inch limitation” [...]

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District Court Finding Doesn’t Preclude PTAB Proceeding

by | Jun 15, 2023 | ,

The Patent Trial & Appeal Board refused to terminate an inter partes review (IPR) proceeding, finding that collateral estoppel and claim preclusion do not apply to previous findings from a district court proceeding. Patent Quality Assurance, LLC v. VLSI Technology LLC, IPR2021-01229, Paper No. 128 (PTAB June 3, 2023) (Melvin, Giannetti, McNamara, APJs).

Patent Quality Assurance filed a petition for IPR on July 7, 2021, against a patent owned by VLSI. The Board granted institution. The Board later instituted on a substantively identical petition filed by Intel and granted Intel’s motion for joinder to add Intel to the Patent Quality Assurance IPR proceeding. Prior to the July 7, 2021, petition, litigation between VLSI and Intel resulted in a jury verdict that Intel infringed certain claims of the challenged patent. Invalidity was not presented to the jury. On May 10, 2022, the district court entered final judgment, including a finding that Intel had not proven invalidity. Based on the district court’s judgment, VLSI asserted that claim preclusion barred Intel from challenging validity of the asserted patent in IPR and sought termination of the IPR as to Intel.

VLSI argued that the elements of claim preclusion were met because both VLSI and Intel were parties to both cases, the district court entered a final judgment for infringement and no finding of invalidity, and the effect of Intel’s IPR was to collaterally attack the final judgment in the first case. Intel responded, arguing that claim preclusion does not apply to IPRs from the district court under the America Invents Act (AIA).

The Board agreed with Intel that estoppel did not apply. Intel argued that if Congress had intended for IPRs to be precluded by claims in a parallel district court, it would have identified that as one of the estoppel circumstances in the AIA. VLSI argued that the Supreme Court’s 1991 decision in Astoria Federal sav. & Loan Ass’n v. Solimino applies only when an agency decision precludes a later court decision and, therefore, common-law claim preclusion would apply to the IPR proceeding barring a plain statement from Congress showing intent to overcome preclusion.

The Board disagreed, noting that the cited case law related to statutes where a later statute superseded the earlier one and required a clear and manifest intent to repeal the earlier statute. The Board found that there was no express intent to repeal the earlier statute regarding estoppel, and the jurisprudence constantly counsels against repeal “by implication.” The Board also crucially noted that there was no statutory conflict between the earlier and later statutes, and the question, therefore, was whether (under Astoria) the AIA showed congressional intent that common-law claim preclusion should apply to IPRs.

Reading 35 U.S.C. § 315(e), the codification of the AIA’s estoppel provision, the Board noted that the statute clearly imposes estoppel on future agency and district proceedings but says nothing about applying adjudications in district court proceedings at the Board. As the Board explained, there would be no reason for § 315(e) to spell [...]

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Obviously Prima Facie Case Overcome by Secondary Considerations

by | Jun 15, 2023 |

The US Court of Appeals for the Federal Circuit affirmed the Patent Trial & Appeal Board, holding that the Board did not err in finding certain challenged claims nonobvious and not unpatentable based on a showing of several objective criteria of nonobviousness and a nexus of the evidence to a commercial product embodying the claimed invention. Medtronic, Inc. v. Teleflex Innovations S.A.R.L., Case No. 21-2357 (Fed. Cir. June 05, 2023) (Moore, C.J.; Lourie, Dyk, JJ.) and Medtronic, Inc. v. Teleflex Innovations S.A.R.L., Case No. 21-2359 (Fed. Cir. June 05, 2023) (Moore, C.J.; Lourie, Dyk, JJ.)

Teleflex developed and patented a novel catheter-based stenosis intervention system that successfully mitigated long-standing risks intrinsic to existing catheter-based intervention systems, in particular damage to the coronary artery from guide catheter dislodgement or a catheter’s distal tip (i.e., the end of the catheter farthest from the insertion site). The preferred embodiments incorporated into Teleflex’s extremely successful GuideLiner products comprised a proximal substantially rigid portion (yellow), a reinforced portion (blue) and a distal flexible tip (pink), as illustrated below.

The catheters were sized so they could be inserted through standard guide catheters and thus were coined guide extension catheters. This innovative nesting feature increased guide catheter backup support while the guide extension catheter’s soft distal end was less likely to cause tissue damage once deeply inserted into patients. Teleflex’s guide extension catheters also were optimized for receiving interventional cardiological devices. This optimized function was a combination of the catheter’s coaxial lumen, that lumen’s diameter being no more than one French (i.e., 1/3 mm) less than the diameter of the guide catheter, and a proximal side opening that featured a double incline design like that illustrated above.

Teleflex’s GuideLiner was introduced in 2009 and enjoyed “undisputed commercial success and industry praise.” In 2019, Medtronic introduced its competing guide extension catheter (Telescope) and filed six inter partes review (IPR) petitions against Teleflex’s extension guide catheter family. Three of Medtronic’s petitions asserted that the challenged claims in three of Teleflex’s patents were obvious over the evacuation sheath assembly with a distal side opening used to aspirate embolic material while occluding blood flow using sealing balloons disclosed in a prior art reference (Ressemann). The other three petitions challenged claims of the other Teleflex patents as being obvious over a support catheter for delivering angioplasty balloons disclosed in a prior art reference (Kontos).

Medtronic specifically asserted that the following three elements of Teleflex’s claimed catheters were obvious:

  1. A proximal side opening. Medtronic argued that it would have been obvious to replace the proximal funnel structure of Kontos’s support catheter with the distal side opening of Ressemann’s evacuation sheath assembly.
  2. A catheter diameter that is no more than one French less than a corresponding guide catheter. Medtronic argued that in view of prior art mother-and-child dual catheter systems in which the child catheter’s diameter is no more [...]

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PTO Seeks Comments on Strategies to Address Counterfeiting and Piracy

by | Jun 8, 2023 |

On May 25, 2023, the US Patent & Trademark Office (PTO) requested comments on strategies to address counterfeiting and piracy. The PTO requested information on current anti-counterfeiting and anti-piracy strategies that have proven effective, as well as ideas for future strategies.

The PTO requested comments on the 14 points listed below. Respondents may address any, all or none of these points. The PTO will receive any input relevant to future strategies in the fight to prevent counterfeited and pirated goods from entering the stream of commerce and reaching the hands of consumers.

1. Current anti-counterfeiting and anti-piracy strategies, and any trends in how often such practices guide plans for addressing these issues in the future.

2. The types of harms observed from sales of counterfeited and pirated goods.

3. How to educate consumers about the harms and dangers that may result from the use and sale of counterfeited or pirated products.

4. Current anti-counterfeiting and anti-piracy strategies that have proven successful, and those that have not. Information relating to targets of anti-counterfeiting and anti-piracy efforts, such as ecommerce platforms, physical markets and social media.

5. Anticipated challenges in the fight to prevent counterfeited and pirated goods from entering the stream of commerce and reaching the hands of consumers, and how to address those challenges.

6. Observed patterns and trends in counterfeiting and piracy during the COVID-19 pandemic. An indication of whether the commenter anticipates that such patterns and trends will continue post-pandemic.

7. Patterns and trends observed in counterfeiting and piracy due to shifts in the economy. An indication of whether the commenter anticipates that such patterns and trends will continue and if so, an explanation regarding the expected impact on current and future strategic plans to combat counterfeiting and piracy.

8. The commenter’s thoughts on whether any strategic plans to combat counterfeiting and piracy might include collaboration with private or public parties. If a strategic plan is not collaborative, why not? If collaborative, a discussion of the anti-counterfeiting and anti-piracy strategies employed in the collaboration.

9. New collaborative efforts contemplated to combat counterfeiting and piracy and factors that will affect implementation decisions. Discussion of how future collaborations might be composed.

10. Effective technologies to prevent counterfeited and pirated goods from entering the stream of commerce and reaching the hands of consumers, such as counterfeit product identification devices or advanced algorithms to secure supply chains and provide the identity of counterfeit goods online. A discussion of how anticipated strategies will improve an overall anti-counterfeiting and anti-piracy strategy.

11. How online enforcement activities intersect with trademark and copyright laws or procedures. Do online enforcement strategies include employing existing trademark laws to combat online counterfeiting? Do online enforcement strategies use existing copyright laws to combat online piracy? If so, describe these activities and suggestions for maximizing these practices.

12. Description of any fraudulent documentation or materials observed in the furtherance of online counterfeiting and piracy activity. For example, comment on whether, after reporting an infringement to a platform, a counter-notification was attached [...]

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Common Sense: Nonparties Not Precluded by Ex Parte Reexamination Termination

by | Jun 8, 2023 |

In a precedential decision, the US Patent & Trademark Office (PTO) Trademark Trial & Appeal Board denied a motion for judgment based on either claim or issue preclusion, and in the alternative for a show cause order, in a challenger’s petition. Common Sense Press Inc. d/b/a Pocket Jacks Comics v. Ethan Van Sciver and Antonio J. Malpica, Cancellation No. 92075375, 2023 BL 171365 (TTAB May 19, 2023) (Wellington, Pologeorgis, English, ATJs).

Common Sense Press filed a petition to cancel the registration for the mark “Comics Gate” for comics. In its petition, Common Sense asserted claims of nonuse, abandonment and fraud. The Respondents denied the allegations in the petition and also raised unclean hands by petitioner as a defense.

Common Sense also requested reexamination of the “Comics Gate” mark, which the PTO Director instituted on May 9, 2022. The cancellation proceeding was suspended pending the outcome of the reexamination. The Respondents were instructed to submit evidence to establish use of their mark for comics as of the August 13, 2020, deadline for filing a statement of use, as required under Section 1(d) of the Lanham Act.

The Respondents’ Section 1(d) statement showed that the “Comics Gate” mark was used in connection with comics sales in interest commerce and that such comics were provided via interest trade channels during the relevant period. In view of the Respondents’ evidence, the PTO Director determined that use had been demonstrated for comics and terminated the reexamination.

With the Notice of Termination in hand, the Respondents requested that the Board enter judgment in their favor in the cancelation proceeding as to nonuse and abandonment based on issue preclusion or, in the alternative, issue a show cause order to Common Sense as to why judgment should not be entered against them.

The Board denied the Respondents’ request, reasoning that termination of a reexamination proceeding does not preclude future nonuse challenges. Nor does such a reexamination termination decision have preclusive effect on a petitioner seeking cancellation, even if the petitioner requested the terminated reexamination. Citing due process concerns, the Board explained that the termination of an ex parte reexamination proceeding in which the petitioner necessarily does not participate may not serve as a basis for preventing the petitioner from raising even identical challenges in another action. The Board further noted that while the applicable statute “contains explicit estoppel provisions that bar the filing of future expungement or reexamination proceedings as to the identical goods or services once a proceeding of the same kind has been instituted . . . neither the statute nor regulations set forth a limitation on any party’s ability to petition to cancel a registration just because it is or has been the subject of a reexamination or expungement proceeding.” Thus, the Board concluded there is no basis to issue a show-cause order to a litigant who never appeared in a prior action.

Practice Note: This case serves as a reminder of the metes and bounds of an ex parte reexamination or expungement proceeding. Although [...]

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Hairy Situation: Trademark Act Doesn’t Provide Consumer Standing

by | Jun 1, 2023 |

The US Patent & Trademark Office Trademark Trial & Appeal Board found that a consumer did not have standing to oppose an application for registration because the consumer failed to establish a commercial interest and injury that would be proximately caused by the registration of the mark. Rebecca Curtin v. United Trademark Holdings, Inc. (TTAB May 4, 2023) (Adlin, Lynch, Bunn, ATJs.)

Rebecca Curtin, a trademark law professor, has purchased various toys for her daughter. Curtin filed an opposition to United Trademark Holdings’ (UTH) application to register RAPUNZEL for use in connection with “dolls; toy figures.” Curtin alleged that RAPUNZEL fails to function as a trademark and is generic (or merely descriptive) of the identified goods and that UTH committed fraud. Curtin lamented that competition would be impeded if “private companies are allowed ‘to trademark the name of a famous fairytale character in the public domain,’” which would likely force consumers to pay higher prices for the relevant goods. Curtin also stated that allowing this registration “could chill the creation of new dolls and toys by fans of the Rapunzel fairytale, crowding out the substantial social benefit of having diverse interpreters of the fairytale’s legacy.”

More than four years ago, the Board denied UTH’s motion to dismiss, finding that Curtin had standing by relying on a case from 1999 that addressed the Trademark Act’s bar to registration for “immoral” or “scandalous” marks. Months after the Board’s initial decision, however, the Supreme Court ruled in Iancu v. Brunetti that the portion of the Trademark Act barring registration for “immoral” or “scandalous” marks was unconstitutional, and updates were issued on the “standard for determining whether a party is eligible to bring a statutory cause of action.”

A plaintiff has standing to oppose registration of a mark “when doing so is within the zone of interests protected by the statute and [opposer] has a reasonable belief in damage that would be proximately caused by registration of the mark.” Here, the Board explained that the statute at issue was the Trademark Act, which identifies its interest as regulating commerce and protecting plaintiffs with commercial interests: “[A] mere consumer that buys goods or services is not under the Trademark Act’s aegis.”

Moreover, Curtin failed to demonstrate that an injury would result from registration of the mark. The Board was unconvinced by Curtin’s explanations of the potential harm to competition and resulting higher prices for consumers, stating that the “allegations of damage are [] too remote, because the alleged damage to Opposer depends first on the alleged effect of registration on other commercial doll markets or sellers.” The Board, therefore, dismissed the opposition.



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Well Runs Dry: Summary Judgment Denial Supports Non-Exceptional Case Finding

by | Jun 1, 2023 |

The US Court of Appeals for the Federal Circuit affirmed a district court’s denial of attorneys’ fees, explaining that when a district court denies summary judgment and allows a plaintiff’s case to proceed, the district court effectively determines that the position of the party opposing summary judgment is not objectively baseless. OneSubsea IP UK Limited v. FMC Techs, Inc., Case No. 22-1099 (Fed. Cir. May 23, 2023) (Moore, Clevenger, Dyk, JJ.)

OneSubsea and FMC compete in the subsea oil and gas exploration and extraction industry. In March 2015, OneSubsea filed a lawsuit against FMC alleging infringement of 95 claims across 10 OneSubsea patents. After the district court issued its claim construction ruling, FMC moved for summary judgment of noninfringement. OneSubsea opposed. While the summary judgment motion was pending, the Patent Trial & Appeal Board instituted inter partes review (IPR) proceedings on a subset of the asserted patents. FMC argued that while a stay of district court proceedings would be appropriate, it was unnecessary in light of its pending summary judgment motion. In August 2016, the district court denied summary judgment and stayed the case.

The case remained stayed for three years, during which time the Board invalidated 76 claims. In 2019, the district court lifted the stay. At a pre-trial hearing in 2020 discussing whether additional discovery was needed to address summary judgment, FMC doubted the need for more discovery and pointed to the 3,200 record pages illustrating differences between the designs of the accused device and the patented devices. In response, the district court stated, “And you really think I’m going to be able to grant summary judgment on that?” After the hearing, FMC renewed its summary judgment motion, which OneSubsea opposed. In reply, FMC moved to exclude the report of OneSubsea’s expert because he applied the wrong claim construction. Ultimately, the district court granted FMC’s motion to exclude and its motion for summary judgment.

In 2021, FMC moved for attorneys’ fees based on OneSubsea’s “substantively weak infringement claims” after the claim construction order was issued and “litigation misconduct.” After briefing was complete, the district court announced that the case had been reassigned to another judge following the retirement of the original assigned judge. The new judge rejected FMC’s view that OneSubsea’s case was objectively baseless and further rejected FMC’s claims of litigation misconduct. FMC appealed.

As a threshold matter, FMC argued that the Federal Circuit should apply de novo review instead of an abuse-of-discretion standard because the new judge only briefly “lived with the case” and should be disqualified from exercising discretion in deciding FMC’s attorneys’ fees motion. The Court rejected FMC’s invitation to change the standard of review, citing the substantial body of law in which appellate courts have consistently reviewed successor judges’ decisions on discretionary issues for abuse of discretion.

Turning to the merits, the Federal Circuit found that FMC’s exceptional case argument lacked merit. The Court explained that the argument disregarded the district court’s observation that FMC’s demand for a prompt favorable noninfringement judgment based [...]

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Heart-to-Heart on Reduction to Practice: When It Comes to Testing, How Much Is Enough?

by | Jun 1, 2023 |

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board decision that the patent owner successfully demonstrated that the claimed heart catheter invention was conceived and reduced to practice prior to the effective date of the reference, by record evidence of adequate testing to demonstrate that the invention would work for its intended purpose. Medtronic, Inc. v. Teleflex Innovations S.Á.R.L., Case Nos. 21-2356; -2358; -2361; -2363; -2365 (Fed. Cir. May 24, 2023) (Moore, C.J.; Lourie, J.) (Dyk, J., dissenting).

Teleflex Innovations owns five patents directed to guide extension catheters that use a tapered inner catheter that runs over a standard coronary guidewire to reduce the likelihood that a guide catheter will dislodge from the coronary artery’s opening. All of the patents are related and share a common specification. Around the time of the challenged patents’ priority date, the applicant was working to develop two commercial variants of similar technology: the “rapid exchange” (or “RX”) version of the GuideLiner product, which Teleflex claims practices the challenged patents, and an “over-the-wire” (or “OTW”) variant, which does not practice the challenged patents.

Medtronic petitioned for inter partes review (IPR), challenging all five patents on the basis that they were predated by a patent to Itou. During the IPR proceedings, Teleflex claimed that conception and reduction to practice occurred prior to Itou’s priority date and submitted several declarations and exhibits such as lab notebooks, internal company memoranda, presentations, invoices, sales orders, photographs, engineering drawings and documents from outside patent counsel in support of its contentions. Ultimately, the Board found that Itou did not constitute prior art and therefore Medtronic had failed to demonstrate that the challenged claims were unpatentable. Medtronic appealed.

On appeal, Medtronic did not challenge conception but argued that the Board’s findings on actual reduction to practice and reasonable diligence toward constructive reduction to practice should be reversed. To establish an actual reduction to practice, the patent owner must show that the inventors constructed an embodiment that met all the limitations of the claimed invention and determined that the invention would work for its intended purpose. Medtronic’s arguments were based on the grounds that the Board erred in three ways:

  1. Incorrectly identifying the intended purpose of the claimed invention
  2. Not requiring comparative testing to demonstrate that the invention worked for that purpose
  3. Relying solely on uncorroborated inventor testimony.

On the first issue, Medtronic argued that the Board incorrectly found an over-broad intended purpose of the claimed invention by relying too heavily on extrinsic evidence. The Federal Circuit acknowledged that while “the patents themselves are the most important” evidence, “it is appropriate to consider extrinsic evidence, particularly when it does not contradict the patents themselves.” The Court went on to conclude that the intended purpose here was broader than the narrow purpose argued by Medtronic (relating to difficult occlusions)—“[t]he very title of the patents themselves, ‘Coaxial Guide Catheter for Interventional Cardiology Procedures,’ describes the purpose of the claimed inventions, and it is undisputed that the [...]

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