Comprehensive guide to Doctrine Of Equivalents cases, courts, and legal analysis.
Johnson & Johnson v. Samsung Bioepis Co Ltd, decided by Third Circuit on April 14, 2026, resulted in a defendant win outcome. The Third Circuit affirmed the District Court's grant of summary judgment ...
Radial Power Asset, LLC v. UNIRAC,Inc, decided by Texas Court of Appeals on April 9, 2026, resulted in a plaintiff win outcome. The dispute centered on whether Radial Power Asset, LLC (Radial) owed UN...
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...
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...
This case involves a patent dispute between Ascendis Pharma A/S and Biomarin Pharmaceutical Inc. regarding a drug used to treat achondroplasia, a form of dwarfism. Ascendis sued Biomarin, alleging tha...
Eaton Corp. v. Angstrom Auto. Group, LLC, decided by Sixth Circuit on February 13, 2026, resulted in a defendant win outcome. The Sixth Circuit affirmed the district court's grant of summary judgment ...
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...
Pharm Research and Mfr v. Murrill, decided by Fifth Circuit on February 9, 2026, resulted in a defendant win outcome. The Fifth Circuit affirmed the district court's grant of summary judgment to the d...
DeAngelis v. Hasbro, Inc., decided by First Circuit on January 29, 2026, resulted in a defendant win outcome. The First Circuit affirmed the district court's dismissal of a lawsuit alleging that Hasbr...
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...
Insinkerator, LLC v. Joneca Company, LLC, decided by Ninth Circuit on December 29, 2025, resulted in a defendant win outcome. The Ninth Circuit affirmed the district court's grant of summary judgment ...
Wonderland Switzerland Ag v. Evenflo Company, Inc., decided by Federal Circuit on December 17, 2025, resulted in a defendant win outcome. The core dispute centered on whether Evenflo's "Prodigy" infan...
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...
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 ...
Apple-Chamberlain v. Apple, decided by Ohio Court of Appeals on December 2, 2025, resulted in a defendant win outcome. The plaintiff, Apple-Chamberlain, sued Apple Inc. for alleged patent infringement...
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...
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...
Canatex Completion Solutions, Inc. v. Wellmatics, LLC, decided by Federal Circuit on November 12, 2025, resulted in a defendant win outcome. The case concerns a patent infringement dispute where the p...
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...
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...
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...
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...
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...
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...
Gujarat Fluorochemicals Ltd. v. United States, decided by Federal Circuit on October 8, 2025, resulted in a defendant win outcome. The Federal Circuit affirmed the International Trade Commission's (IT...
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...
Future Link Systems, LLC v. Realtek Semiconductor Corporation, decided by Federal Circuit on September 9, 2025, resulted in a defendant win outcome. The case concerns whether Future Link Systems (FLS)...
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