U.S. Patent 11055792 was awarded to Advanced New Technologies Co., Ltd. on July 06, 2021 and is entitled “Blockchain-based service source tracing method, apparatus, and electronic device.” The first named inventor is Xu Wang of Qinhuangdao, . The abstract contains an overview of the patent disclosure:

Computer-implemented methods, non-transitory, computer-readable media, and computer-implemented systems for blockchain-based service source tracing are provided. A blockchain stores service certificates of multiple service dimensions which constitute multiple service certificate linked lists. A service system maintains a mapping relationship between a last node of each service certificate linked list and a service index of a service dimension that each service certificate linked list belongs to. In response to a client-initiated service source tracing request for a target service dimension that includes a service index of the target service dimension, the mapping relationship is queried to determine the last node corresponding to the service index of the target service dimension. A service certificate of the target service dimension stored on the blockchain is queried based on a linked list pointer recorded in the last node. The identified service certificate is returned to the client. Link to Full Patent

This blockchain patent was originally filed on February 27, 2020  as U.S. Patent Application 16/803955 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11055792. The primary examiner was Nathan A Mitchell.

Advanced New Technologies Co., Ltd., who is the original assignee of this patent, has at least 1031 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 0 times by other U.S. patents according to our law firm research, and can be considered an innovative patent in the field of cryptocurrency and blockchain.

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