US Patent Issued to CHINA UNIONPAY on April 8 for "Blockchain data access authorization method, apparatus, and device" (Chinese Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,273,440, issued on April 8, was assigned to CHINA UNIONPAY Co. LTD. (Shanghai).

"Blockchain data access authorization method, apparatus, and device" was invented by Yuzhuang Xu (Shanghai), Tao Zhu (Shanghai) and Yu Zhou (Shanghai).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for authorizing a blockchain data access on a blockchain platform includes: obtaining from a third-party institution a data access request containing a user ID of data access, a data scope, and a random number of a signature, which is generated by the third-party institution after receiving a random number sent by a client terminal and signing on the received random number...