Browse 17 patent trial and appeal board ptab review cases decided by Federal Circuit. AI-powered summaries, holdings, and legal analysis.
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...
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 ...
CAFC Affirms PTAB, Finds Software Patent Unpatentable
In Re US, decided by Federal Circuit on February 2, 2026, resulted in a defendant win outcome. The case concerns the patentability of software, specifically the "data processing" method claimed in the...
CAFC Affirms PTAB's Non-Obviousness Finding for Sound View Patent
Sound View Innovations, LLC v. Hulu, LLC, decided by Federal Circuit on January 29, 2026, resulted in a plaintiff win outcome. The Federal Circuit affirmed the Patent Trial and Appeal Board's (PTAB) d...
Federal Circuit Affirms PTAB's Patent Invalidation for Abstract Idea
Mutakaber v. Secretary of State, decided by Federal Circuit on December 18, 2025, resulted in a defendant win outcome. The case concerns the validity of a patent for a "method and apparatus for detect...
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...
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 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...
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 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...
Federal Circuit Affirms PTAB's Obviousness Finding for Patent Claims
In Re BRUNETTI, decided by Federal Circuit on August 26, 2025, resulted in a defendant win outcome. The Federal Circuit affirmed the Patent Trial and Appeal Board's (PTAB) decision that claims of Brun...
Federal Circuit Affirms PTAB Obviousness Finding in Semiconductor Patent Case
Fisher v. United States, decided by Federal Circuit on August 12, 2025, resulted in a defendant win outcome. The case concerns whether the Patent Trial and Appeal Board (PTAB) correctly applied the "o...
CAFC Affirms Obviousness Rejection of Semiconductor Manufacturing Patent
Deal v. Collins, decided by Federal Circuit on June 27, 2025, resulted in a defendant win outcome. The case concerns whether a patent claim for a "method of manufacturing a semiconductor device" was p...
Federal Circuit Affirms PTAB's Non-Anticipation and Non-Obviousness Finding
In Re VETEMENTS GROUP AG, decided by Federal Circuit on May 21, 2025, resulted in a defendant win outcome. The Federal Circuit affirmed the Patent Trial and Appeal Board's (PTAB) decision that claims ...
Federal Circuit Affirms PTAB Obviousness Finding for Sage Products Patent
Sage Products, LLC v. Stewart, decided by Federal Circuit on April 15, 2025, resulted in a defendant win outcome. The Federal Circuit affirmed the Patent Trial and Appeal Board's (PTAB) decision that ...
CAFC Affirms PTAB Decision Under Substantial Evidence Standard
Lesko v. United States, decided by Federal Circuit on March 18, 2025, resulted in a defendant win outcome. The case concerns the interpretation of the "substantial evidence" standard of review applied...
CAFC Affirms Patentability of Merck's Method of Treatment Patent
Cqv Co., Ltd. v. Merck Patent Gmbh, decided by Federal Circuit on March 10, 2025, resulted in a defendant win outcome. The core dispute centered on whether Merck's patent for a "method of treating" a ...
CaseLawBrief currently tracks 17 patent trial and appeal board ptab review cases from Federal Circuit. This number is updated as new opinions are published.
Outcome breakdown: Defendant Win: 16, Plaintiff Win: 1.
Each case page on CaseLawBrief includes an AI-generated plain English summary, key holdings, and legal analysis. Click any case above to read its full analysis.