ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,936, issued on April 21, was assigned to Schlage Lock Co. LLC (Carmel, Ind.).
"Blockchain for access control" was invented by Joseph W. Baumgarte (Carmel, Ind.), Robert Martens (Carmel, Ind.) and Sean Neal (Indianapolis).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of using a blockchain in an access control environment according to one embodiment includes transmitting, by a mobile device, a request to access a passageway secured by a lock device to a first node device, wherein a plurality of node devices including the first node device store the blockchain, receiving, by the mobile device, a lock-specific access token from one of the plur...