A decentralized finance (DeFi) advocacy body has petitioned the United States Patent and Trademark Office (USPTO) to review a patent owned by a company it has accused of being a a “patent troll” — a firm that aims to profit from patent lawsuits.
In a Sept. 11 blog post, the DeFi Education Fund (DEF) said on Sept. 7 that it filed an over 90-page petition to the Patent Trial and Appeal Board in a bid to cancel a patent owned by True Return Systems.