“I write to express my concerns regarding Meta Platforms, Inc.’s (f/k/a Facebook, Inc.) filing status of five trademark applications related to various digital assets services and blockchain technology with the U.S. Patent and Trademark Office (USPTO),” the letter said. “With its initial filings on March 18, 2022, Meta’s application submissions as of January 22 appear to represent a continued intention to expand the company’s involvement in the digital assets ecosystem.”