Patent Challenges Surge in May After High Court Ruling

Patent review filings in May surged in the wake of a U.S. Supreme Court ruling that upheld the patent office’s validity review system.

Accused infringers filed 159 petitions challenging the validity of issued patents at the Patent and Trademark Office in May, up from 88 in April, Bloomberg Law data show. The filings represent a 25 percent jump from May 2017.

May filings were the highest since the patent office received 195 petitions in June 2017, when the Supreme Court agreed to hear Oil States Energy Services., LLC v. Greene’s Energy Group, LLC. The case questioned whether the patent office’s ...