ALEXANDRIA, Va., March 17 -- United States Patent no. 12,579,165, issued on March 17, was assigned to Lendingclub Bank, National Association (San Francisco).

"Restricted blockchain cluster" was invented by Jianju Liu (Kentfield, Calif.), Aaron Jimenez (San Diego), Wenxuan Xu (San Mateo, Calif.) and Jianglan Han (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques are provided for tracking a number of transactions-of-interest in a transaction-recording blockchain using a control blockchain. A transaction-of-interest is a transactions that is in a particular state. A request to perform an action is received. Upon receiving the request and determining that the action corresponds to a new tra...