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Gideon Korrell Discusses Key Legal Takeaways from Smartrend v Opti Luxx

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The Federal Circuit’s decision in Smartrend Manufacturing Group (SMG), Inc. v. Opti-Luxx Inc. gives a clear and practical view of two common issues in patent cases: how courts interpret design patent language and how far the doctrine of equivalents can apply in utility patents. In this case, the court set aside a design patent verdict, reversed a finding based on the doctrine of equivalents, and removed a permanent injunction. As Gideon Korrell explains, the ruling highlights an important idea: courts decide the legal meaning of a patent, and those limits must be followed even if a jury has already given a decision. Background of the Case Smartrend filed a lawsuit against Opti-Luxx, claiming infringement of both a design patent and a utility patent related to illuminated school bus signs. A jury first ruled in favor of Smartrend on both claims, and the district court granted a permanent injunction. On appeal, the Federal Circuit closely reviewed the legal reasoning behind these decisi...
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Gideon Korrell Discusses Judicial Claim Correction and Its Role in Patent Survival

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Judicial claim correction has a small but important role in patent law. As Gideon Korrell explains, in a recent Federal Circuit decision, Canatex Completion Solutions, Inc. v. Wellmatics, LLC, the court clarified when mistakes in patent claims can be fixed instead of being used to invalidate a patent. This case shows how courts balance strict rules with fairness to patent owners. Understanding Judicial Claim Correction Judicial claim correction allows a court to fix small errors in patent claims during a case. However, this power is used very carefully to protect how patents inform the public. The rule comes from the Supreme Court’s decision in I.T.S. Rubber Co. v. Essex Rubber Co.. Over time, courts have turned this into a strict three-part test: The mistake must be clear from reading the patent The correction must not be open to reasonable disagreement The fix must be a small clerical or typing error Courts stress that this rule is narrow. It is not meant to rewrite claims but to sh...
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Gideon Korrell Explains Why the Court Rejected Motorola’s Mandamus Petition

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On November 6, 2025, the U.S. Court of Appeals for the Federal Circuit denied Motorola Solutions’ request for a writ of mandamus in In re Motorola Solutions, Inc. As Gideon Korrell explains, the company had asked the court to overturn the USPTO’s decision to deinstitute eight inter partes reviews (IPRs) involving Stellar’s patents. The ruling highlights a consistent principle in patent law: institution decisions are largely within the Director’s discretion and are rarely open to court review. Background: How the Dispute Developed The case began with parallel litigation: Stellar sued Motorola in the district court in 2023 for patent infringement. Motorola responded by filing IPR petitions in 2024. Motorola included Sotera-style stipulations, agreeing not to raise the same invalidity arguments in court. Initially, the Patent Trial and Appeal Board (PTAB) instituted review. However: Stellar requested Director Review. Meanwhile, USPTO policy shifted. Earlier guidance (the Vidal Memorandum...
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Gideon Korrell Explains How “Outer Frame” Language Led to a “Self-Expanding” Interpretation

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In Aortic Innovations LLC v. Edwards Lifesciences Corp., the Federal Circuit delivered a clear lesson on how patent language can shape outcomes. As Gideon Korrell explains, the case shows how repeated wording in a patent specification can quietly turn into a binding definition. What may seem like harmless phrasing can end up limiting claim scope and determining the result of an infringement dispute. Understanding the Technology The patents in this case relate to transcatheter aortic valve replacement (TAVR) devices. These devices are inserted into the heart in a compressed form and then expanded once in place. There are two common ways these devices expand: Balloon-expandable frames – expanded using a balloon Self-expanding frames – made from materials that expand on their own The claims at issue described a valve with two parts: An inner frame (holding the valve) An outer frame (providing structure and sealing) The dispute centered on whether the “outer frame” could include a ballo...
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Gideon Korrell Discusses Why Recusal Alone Didn’t Overturn the IPR Ruling

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On October 22, 2025, the Federal Circuit issued a mixed but important decision in Centripetal Networks, LLC v. Palo Alto Networks, Inc. While the court rejected sweeping arguments about recusal and due process, it still vacated the Patent Trial and Appeal Board’s (PTAB) final ruling. The key reason was not bias, but the Board’s failure to properly evaluate evidence of copying an essential part of the obviousness analysis. As Gideon Korrell explains, this case shows that procedural challenges alone rarely decide appeals. Instead, substantive legal errors often carry more weight. Background of the Dispute The case arose from inter partes review (IPR) proceedings involving claims of U.S. Patent No. 9,917,856, which relates to detecting threats in encrypted network communications. Palo Alto Networks filed the initial IPR petition Cisco Systems and Keysight Technologies later joined The PTAB ultimately found the claims unpatentable as obvious However, complications emerged when it was disc...
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