Explore 24 court opinions on Doctrine Of Equivalents In Patent Law. AI-powered plain English summaries, key holdings, and legal analysis.
24 recent cases analyzed in this topic area.
Federal Circuit Affirms Non-Infringement of Catalyst Patent
Ingevity Corporation v. Basf Corporation, decided by Federal Circuit on February 11, 2026, resulted in a defendant win outcome. The core dispute centered on whether BASF's patent for a catalyst used i...
Federal Circuit Affirms Non-Infringement of Streaming Patent
Gotv Streaming, LLC v. Netflix, Inc., decided by Federal Circuit on February 9, 2026, resulted in a defendant win outcome. The core dispute involved whether Netflix's streaming service infringed upon ...
Federal Circuit Affirms Non-Infringement of Therapeutic Device Patent
Range of Motion Products, LLC v. Armaid Company Inc., decided by Federal Circuit on February 2, 2026, resulted in a defendant win outcome. The core dispute centered on whether Range of Motion Products...
CAFC Affirms Non-Infringement of Search Result Patent Against Google
US Patent No. 7,679,637 LLC v. Google LLC, decided by Federal Circuit on January 22, 2026, resulted in a defendant win outcome. The core dispute centered on whether Google's use of a patent for a "sys...
Federal Circuit Affirms No Patent Infringement for Unapproved Drug Method
Barry v. Depuy Synthes Companies, decided by Federal Circuit on January 20, 2026, resulted in a defendant win outcome. The Federal Circuit affirmed the district court's grant of summary judgment to th...
Federal Circuit Affirms Non-Infringement of Ethanol Sensor Patent
Ethanol Boosting Systems, LLC v. Ford Motor Company, decided by Federal Circuit on December 23, 2025, resulted in a defendant win outcome. The core dispute centered on whether Ford Motor Company infri...
CAFC Affirms Zillow's Non-Infringement of IBM Patent
IBM v. Zillow Group, Inc., decided by Federal Circuit on December 9, 2025, resulted in a defendant win outcome. The Federal Circuit affirmed the district court's grant of summary judgment to Zillow, h...
Federal Circuit Invalidates Patent for Lack of Machine Specificity
Akamai Technologies, Inc. v. Mediapointe, Inc., decided by Federal Circuit on November 25, 2025, resulted in a defendant win outcome. The core dispute centered on whether Mediapointe's patent for a me...
CAFC Affirms Non-Infringement of Patent for Removable Memory Card
Escapex Ip, LLC v. Google LLC, decided by Federal Circuit on November 25, 2025, resulted in a defendant win outcome. The core dispute centered on whether Google's Pixel phones infringed upon Escapex's...
CAFC: "Best Efforts" Requires More Than Reasonableness in Patent Licensing
Duke University v. Sandoz Inc., decided by Federal Circuit on November 18, 2025, resulted in a plaintiff win outcome. The core dispute involved the interpretation of a "best efforts" clause in a paten...
Federal Circuit Affirms Non-Infringement of Smart Lighting Patent
Smartrend Manufacturing Group (Smg), Inc. v. Opti-Luxx Inc., decided by Federal Circuit on November 13, 2025, resulted in a defendant win outcome. The core dispute centered on whether Opti-Luxx's "sma...
Federal Circuit Affirms Non-Infringement of MS Drug Patent
Merck Serono S.A. v. Hopewell Pharma Ventures, Inc., decided by Federal Circuit on October 30, 2025, resulted in a defendant win outcome. The core dispute centered on whether Merck Serono's patent for...
Federal Circuit Affirms Non-Infringement of Aortic Valve Patent
Aortic Innovations LLC v. Edwards Lifesciences Corporation, decided by Federal Circuit on October 27, 2025, resulted in a defendant win outcome. The core dispute centered on whether Edwards Lifescienc...
Federal Circuit Affirms Patent Infringement Finding Against Palo Alto Networks
Centripetal Networks, LLC v. Palo Alto Networks, Inc., decided by Federal Circuit on October 22, 2025, resulted in a plaintiff win outcome. The core dispute involved Centripetal Networks' patent infri...
Federal Circuit Affirms Non-Infringement of Lens Manufacturing Patent
Inland Diamond Products Co. v. Cherry Optical Inc., decided by Federal Circuit on October 15, 2025, resulted in a defendant win outcome. The case concerns whether a patent for a "method of manufacturi...
Federal Circuit Affirms Non-Infringement of Wireless Patent
Finesse Wireless LLC v. At&t Mobility LLC, decided by Federal Circuit on September 24, 2025, resulted in a defendant win outcome. The core dispute centered on whether At&t Mobility LLC (At&t) infringe...
Federal Circuit Affirms Non-Infringement of Weight-Adjustable Dumbbell Patent
Powerblock Holdings, Inc. v. Ifit, Inc., decided by Federal Circuit on August 11, 2025, resulted in a defendant win outcome. The core dispute centered on whether iFit's "SmartRow" product infringed up...
CAFC Affirms Non-Infringement of Display Device Patent
Mondis Technology Ltd. v. Lg Electronics Inc., decided by Federal Circuit on August 8, 2025, resulted in a defendant win outcome. The core dispute centered on whether LG Electronics infringed Mondis T...
Sixth Circuit: Westlake Vinyls Did Not Infringe Avient's Patent
Avient Corp. v. Westlake Vinyls, Inc., decided by Sixth Circuit on July 29, 2025, resulted in a defendant win outcome. The Sixth Circuit affirmed the district court's grant of summary judgment to West...
Federal Circuit Affirms Non-Infringement of Heart Valve Patent
Colibri Heart Valve LLC v. Medtronic Corevalve, LLC, decided by Federal Circuit on July 18, 2025, resulted in a defendant win outcome. The Federal Circuit affirmed the district court's finding of non-...
Federal Circuit Affirms Non-Infringement of Egenera's Patent by Cisco Nexus Switches
Egenera, Inc. v. Cisco Systems, Inc., decided by Federal Circuit on July 7, 2025, resulted in a defendant win outcome. The core dispute centered on whether Cisco's "Nexus" line of network switches inf...
Sixth Circuit Affirms No Patent Infringement Due to Missing Claim Elements
VCST Int'l B.V. v. BorgWarner Noblesville, LLC, decided by Sixth Circuit on June 30, 2025, resulted in a defendant win outcome. The Sixth Circuit affirmed the district court's grant of summary judgmen...
CAFC Affirms Non-Infringement of Ophthalmic Drug Patent
Eye Therapies, LLC v. Slayback Pharma LLC, decided by Federal Circuit on June 30, 2025, resulted in a defendant win outcome. The core dispute centered on whether Slayback Pharma LLC's proposed generic...
CA3 Affirms Enbrel Patent Infringement, Reverses Willfulness Finding
Amgen Inc v. Celltrion USA Inc, decided by Third Circuit on June 5, 2025, resulted in a mixed outcome. The Third Circuit affirmed the District Court's finding of infringement of Amgen's patents for it...