Explore 30 court opinions on Patent Law. AI-powered plain English summaries, key holdings, and legal analysis.
30 recent cases analyzed in this topic area.
CAFC Affirms Patent Validity for Eli Lilly's Diabetes Drug
Teva Pharmaceuticals International Gmbh v. Eli Lilly and Company, decided by Federal Circuit on April 16, 2026, resulted in a defendant win outcome. The case concerns the validity of a patent held by ...
Federal Circuit Affirms PTAB Obviousness Finding
Definitive Holdings v. Powerteq, decided by Federal Circuit on April 14, 2026, resulted in a defendant win outcome. The Federal Circuit affirmed the Patent Trial and Appeal Board's (PTAB) decision tha...
Patent invalidity and no trade secret misappropriation affirmed
Practical Technology, Inc. v. Neurological Fitness Equipment and Education, LLC, decided by Texas Court of Appeals on April 10, 2026, resulted in a defendant win outcome. This case concerns a dispute ...
Federal Circuit Affirms No Patent Infringement Under Doctrine of Equivalents
This case involves a dispute over a patent for a "method and apparatus for detecting and measuring the concentration of analytes in a fluid sample." The inventor, Dr. Kendall, sued Collins, alleging t...
Federal Circuit Finds No Patent Infringement Under Doctrine of Equivalents
This case involves a dispute over a patent for a "method and apparatus for detecting and characterizing subsurface anomalies." The inventor, Mr. MacKey, sued Collins, alleging that Collins infringed o...
CAFC Affirms in Part, Reverses in Part ITC Ruling Against Apple in Patent Infringement Case, Remands for Further Proceedings
This case involved Apple Inc. appealing a decision by the International Trade Commission (ITC) regarding certain patents. The ITC had previously found that Apple infringed on some patents related to e...
Federal Circuit Affirms Deere & Company Not Obligated to Commercialize Inventor's Patent Without Explicit Contractual Duty
This case involved a dispute between Dr. Gramm and Deere & Company regarding a patent for a combine harvester. Dr. Gramm, the inventor, had assigned his patent rights to Deere. The core of the dispute...
Federal Circuit Reverses Patent Ineligibility Ruling, Revives Columbia University's Malware Detection Patent Lawsuit Against Gen Digital
This case involves a patent dispute between the Trustees of Columbia University and Gen Digital Inc. (formerly Symantec Corporation). Columbia University sued Gen Digital for infringing its U.S. Paten...
Appeals Court Vacates Patent Infringement Ruling Against Sonos, Citing Incorrect Patent Term Interpretation
This case involves a patent dispute between Implicit, LLC and Sonos, Inc. Implicit sued Sonos for infringing two of its patents related to audio technology. The district court initially ruled in favor...
Federal Circuit Affirms Microsoft's Non-Infringement of Exafer's Patents in Xbox Case
This case involved Exafer Ltd. suing Microsoft Corporation for patent infringement related to technology used in Microsoft's Xbox gaming consoles. Exafer alleged that Microsoft infringed on its patent...
Court Affirms Co-Inventorship of Firearm Patent, Denying Sole Inventorship Claim
This case, Janich v. Collins, involved a dispute over the ownership of a patent for a 'Quick-Change' barrel assembly for firearms. The plaintiff, Janich, claimed that he was the sole inventor and that...
Federal Circuit Affirms No Patent Infringement in Gene Therapy Dispute
This case involves a dispute between two biotechnology companies, Regenxbio Inc. and Sarepta Therapeutics, Inc., over patent rights related to gene therapy. Regenxbio sued Sarepta, alleging that Sarep...
CAFC Affirms Finding of Non-Infringement in Electrical Connector Patent Case
This case involves a dispute over a patent for an electrical connector. Willis Electric Co. (Willis) sued Polygroup Ltd. (Polygroup) for infringing on their patent. The lower court found that Polygrou...
Federal Circuit: Method using non-nucleic acid probe not patentable
Cash v. Collins, decided by Federal Circuit on February 5, 2026, resulted in a defendant win outcome. The case concerns the patentability of a method for detecting and quantifying nucleic acids using ...
Federal Circuit Affirms No Patent Infringement by Goodyear
Coda Development S.R.O. v. Goodyear Tire & Rubber Company, decided by Federal Circuit on December 8, 2025, resulted in a defendant win outcome. The Federal Circuit affirmed the district court's grant ...
CAFC Affirms PTAB's Non-Obviousness Finding for Adnexus Patent
Adnexus Inc. v. Meta Platforms, Inc., decided by Federal Circuit on December 5, 2025, resulted in a defendant win outcome. The Federal Circuit affirmed the Patent Trial and Appeal Board's (PTAB) decis...
Settlement Agreement Unenforceable Due to Lack of Mutual Assent
Colage v. Collins, decided by Federal Circuit on December 3, 2025, resulted in a defendant win outcome. The case concerns the enforceability of a settlement agreement in a patent infringement dispute....
CAFC Affirms PTAB Decision, Upholding Seagen's Cancer Drug Patent
Seagen Inc. v. Daiichi Sankyo Company, Ltd., decided by Federal Circuit on December 2, 2025, resulted in a defendant win outcome. The core dispute centered on whether Daiichi Sankyo's patent for a can...
Federal Circuit Affirms Non-Infringement of Gesture Interface Patent
In Re GESTURE TECHNOLOGY PARTNERS, LLC, decided by Federal Circuit on December 1, 2025, resulted in a defendant win outcome. The case concerns whether a patent for a gesture-based user interface was i...
CAFC: Generic Drug Maker Did Not Induce Infringement of Method-of-Use Patent
Duke University v. Sandoz Inc., decided by Federal Circuit on November 18, 2025, resulted in a defendant win outcome. The case concerns the validity of a patent for a drug used to treat rheumatoid art...
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 PTAB Obviousness Finding for Motorola Patents
In Re MOTOROLA SOLUTIONS, INC., decided by Federal Circuit on November 6, 2025, resulted in a defendant win outcome. The Federal Circuit affirmed the Patent Trial and Appeal Board's (PTAB) decision th...
CAFC Affirms Obviousness-Type Double Patenting Invalidity of Merck 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 involved Merck's claim that Hopewell infringe...
Ninth Circuit Invalidates Software Patent as Abstract Idea
Supertech, Inc. v. My Choice Software, LLC, decided by Ninth Circuit on October 23, 2025, resulted in a defendant win outcome. The Ninth Circuit affirmed the district court's grant of summary judgment...
CAFC Affirms ITC Decision on Brita Water Filter Patent Infringement
Brita Lp v. Itc, decided by Federal Circuit on October 15, 2025, resulted in a defendant win outcome. The case concerns whether the International Trade Commission (ITC) correctly determined that Brita...
Federal Circuit Affirms Non-Infringement of Semiconductor Manufacturing Patent
Iqe Plc v. Newport Fab, LLC, decided by Federal Circuit on October 15, 2025, resulted in a defendant win outcome. The case concerns whether a patent for a "method of manufacturing a semiconductor devi...
CAFC Affirms Non-Infringement of Smart Thermostat Patents
Causam Enterprises, Inc. v. Ecobee Technologies Ulc, decided by Federal Circuit on October 15, 2025, resulted in a defendant win outcome. Causam Enterprises sued Ecobee for patent infringement, allegi...
Federal Circuit Affirms Obviousness Finding, Invalidating Patent
Causam Enterprises, Inc. v. Itc, decided by Federal Circuit on October 15, 2025, resulted in a defendant win outcome. Causam Enterprises sued ITC for patent infringement, alleging that ITC's products ...
CAFC Affirms PTAB's Rejection of Patent Claims as Abstract Idea
US Inventor, Inc. v. PTO, decided by Federal Circuit on October 3, 2025, resulted in a defendant win outcome. The case concerns whether the Patent Trial and Appeal Board (PTAB) correctly determined th...
CAFC Affirms Patent Invalidity for Obviousness, Remands Non-Infringement
Focus Products Group International, LLC v. Kartri Sales Co., Inc., decided by Federal Circuit on September 30, 2025, resulted in a mixed outcome. The case concerns a dispute over the validity and infr...