U.S. Patent 11049099 was awarded to Advanced New Technologies Co., Ltd. on June 29, 2021 and is entitled “Methods for implementing privacy protection in blockchain.” The first named inventor is Ying Yan of Hangzhou, . The abstract contains an overview of the patent disclosure:

A computer-implemented method includes receiving, by a first blockchain node, an encrypted transaction comprising a smart contract that includes code, wherein the code of the smart contract comprises a contract state indicated by a privacy identifier; decrypting, by the first blockchain node, the encrypted transaction to obtain the code of the smart contract in plaintext; executing, by the first blockchain node, the code of the smart contract in plaintext in a trusted execution environment; encrypting, by the first blockchain node using a key, the contract state indicated by the privacy identifier; and writing, by the first blockchain node, the encrypted contract state indicated by the privacy identifier to a database. Link to Full Patent

This blockchain patent was originally filed on January 27, 2021  as U.S. Patent Application 17/160216 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11049099. The primary examiner was James D Nigh.

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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