US Patent Issued to PassiveBolt on March 25 for "Decentralized identity-based access control systems and methods" (Michigan Inventors)

ALEXANDRIA, Va., March 26 -- United States Patent no. 12,261,965, issued on March 25, was assigned to PassiveBolt Inc. (Ann Arbor, Mich.).

"Decentralized identity-based access control systems and methods" was invented by Kabir Zachary Maiga (Canton, Mich.), Philip Michael Johnson (Ann Arbor, Mich.) and Simon Forster (Ann Arbor, Mich.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic access key system includes an access device. The access device is configured to receive an electronic access key from a presenter computing system of a presenter and control access to a physical space. The electronic access key was previously digitally signed by an issuer computing system of an issuer associated with t...