ALEXANDRIA, Va., June 16 -- United States Patent no. 12,309,286, issued on May 20, was assigned to Microsoft Technology Licensing LLC (Redmond, Wash.).
"Trusted custody chain for verifiable claims" was invented by Brandon Brian Murdoch (Reading, Great Britain), Ankur Patel (Sammamish, Wash.) and Eric Christopher Sachs (Woodside, Wash.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A first chain of custody verifiable claim is received by a second entity from a first entity. The first chain of custody verifiable claim is signed by the first entity and specifies that an object was in the custody of the first entity. A distributed ledger is accessed to verify the first chain of custody verifiable claim. A second...