Browse 3 natural phenomena exception to patent eligibility cases decided by Federal Circuit. AI-powered summaries, holdings, and legal analysis.
Method of treatment patent rejected for claiming natural phenomenon
Ablan v. United States, decided by Federal Circuit on December 22, 2025, resulted in a defendant win outcome. The case concerns the patentability of a "method for treating a disease by administering a...
CAFC Affirms PTAB's Rejection of ctDNA Patent Claims Under § 101
Wright v. Collins, decided by Federal Circuit on October 28, 2025, resulted in a defendant win outcome. The case concerns the patentability of a method for detecting and quantifying circulating tumor ...
CAFC Affirms Patent Ineligibility for Method of Treatment Using Biomarker Correlation
Steele v. Collins, decided by Federal Circuit on May 1, 2025, resulted in a defendant win outcome. The case concerns the patentability of a method for treating a disease using a drug that has already ...
CaseLawBrief currently tracks 3 natural phenomena exception to patent eligibility cases from Federal Circuit. This number is updated as new opinions are published.
Outcome breakdown: Defendant Win: 3.
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.