On December 11, 2025, Regeneron filed a Memorandum in Support of Its Motion to Bifurcate and Stay Amgen's Antitrust Claims in the ongoing aflibercept patent litigation in the U.S. District Court for the Northern District of West Virginia. As we previously reported, Regeneron filed a second complaint against Amgen in June 2025, alleging infringement of a patent that had issued after Amgen launched its PAVBLU® (aflibercept-ayyh). In response, Amgen filed an answer and counterclaims, alleging violations of the [...]

The holiday season brings people together to decorate their homes, exchange gifts, and gather with family and friends. While these traditions feel timeless, many of the holiday staples we cherish are relatively recent inventions made possible by the patent system. As you pour a glass of eggnog and take a break wrapping presents, let us explore a few groundbreaking patents that have shaped how we celebrate. String lights draped across trees, lamp posts, and [...]

US Patent and Trademark Office Director John Squires is on a mission to weed out erroneously granted patents—and he's trying to "catch 'em all." The fact that he initiated a review of one of Nintendo Co.'s newest patents signals that the PTO is prioritizing public trust and consistency across global patent jurisdictions. Nintendo is suing Pocketpair, Inc. in Japan, alleging that Palworld, a competitor game nicknamed "Pokémon with guns", infringes patents tied to game mechanics, including creature [...]