February 05, 2026
The head of the U.S. Patent and Trademark Office has declined requests by chipmaker Greenthread to review Patent Trial and Appeal Board decisions invalidating claims in its semiconductor patents.
November 14, 2025
Chipmaker Greenthread has asked the head of the U.S. Patent and Trademark Office to review Patent Trial and Appeal Board decisions invalidating claims in a trio of semiconductor patents, claiming the board has shown "a clear bias for" the challengers.
October 17, 2025
The Patent Trial and Appeal Board found that a Greenthread semiconductor patent was invalid after finding one of the challengers didn't have ties to Intel in a way that could have doomed the case.
May 23, 2025
Acting U.S. Patent and Trademark Office Director Coke Morgan Stewart is standing by her decision to allow Greenthread LLC to review whether one of the companies challenging its chip patents, Semiconductor Components Industries, has ties to Intel.
May 12, 2025
The U.S. Patent and Trademark Office's acting leader should rethink her decision allowing for discovery in a patent fight over a pair of semiconductor patents, a chipmaker challenging the patents at the Patent Trial and Appeal Board has argued.
April 28, 2025
The U.S. Patent and Trademark Office's acting director has ordered the Patent Trial and Appeal Board to allow discovery over a chipmaker's relationship with Intel Corp., which could block challenges targeting patents issued to a former Texas Instruments Inc. executive.
March 01, 2024
A Dallas company called Greenthread LLC has asked the head of the U.S. Patent and Trademark Office to review decisions of the Patent Trial and Appeal Board allowing challenges to claims in a pair of its patents.