A rule that lets the U.S. Patent and Trademark Office refuse to consider a patent challenge—to avoid duplicating proceedings—has sparked lawsuits, complaints, and even a request for Congress to investigate.
Inventors say the NHK-Fintiv rule helps patent owners avoid fighting attacks on multiple fronts.
But tech heavyweights such as
(1) What is the NHK-Fintiv rule?
The rule—a product of precedent established under former PTO director Andrei Iancu—lets the ...