Section 101 eligibility remains one of the most unpredictable and frequently contested areas of U.S. patent practice, particularly for software, artificial intelligence, and machine learning....more
What’s New: USPTO Embraces Evidence-Driven § 101 Practice - The U.S. Patent and Trademark Office (USPTO) recently issued two coordinated memoranda explaining how applicants can use Subject Matter Eligibility Declarations...more
On Dec. 4, 2025, U.S. Patent and Trademark Office (USPTO) Director Squires issued new guidance to patent examiners and applicants via a pair of memoranda (Guidance) encouraging the use of subject matter eligibility...more
On December 4, 2025, U.S. Patent and Trademark Office (USPTO) Director John Squires issued two memoranda addressing subject matter eligibility and spotlighting an additional pathway to overcome a rejection under 35 U.S.C. §...more
CAREDX, INC. V. NATERA, INC. Before Lourie, Bryson, and Hughes - Summary: Expert testimony that steps of challenged patent claims were unconventional failed to preclude summary judgment of ineligibility where...more