May 19, 2026
The Patent Trial and Appeal Board has tossed a pair of challenges to mercury removal patents owned by Birchtech Corp., saying the challengers were prioritizing separate bids to invalidate the same patents.
August 22, 2025
A top Patent Trial and Appeal Board judge Friday rejected challenges to GenghisComm Holdings LLC patents issued as recently as 2022, as part of the three discretionary review decisions issued over the last week.
July 03, 2025
Acting U.S. Patent and Trademark Office Director Coke Morgan Stewart has released 24 more discretionary denial decisions, more than half of which she cleared challenges to move forward through the Patent Trial and Appeal Board process.