U.S. Patent 11049115 was awarded to Advanced New Technologies Co., Ltd. on June 29, 2021 and is entitled “Blockchain-based bill write-off method, apparatus, electronic device, and storage medium.” The first named inventor is Yu Chu of Hangzhou, . The abstract contains an overview of the patent disclosure:

A target transaction to write off a target e-bill is received. In response to the target transaction, a write-off logic declared in a smart contract published on a blockchain is invoked. A bill number of the target e-bill is obtained, and whether the bill number matches an e-bill number segment maintained in a blockchain account corresponding to a bill issuer of the target e-bill is checked. In response to determining that the bill number matches the e-bill number segment maintained in the blockchain account corresponding to the bill issuer of the target e-bill, a validity check is performed on bill content of the target e-bill. After the validity check succeeds, generating a write-off completion event corresponding to the target e-bill is generated and published to the blockchain for storage. Link to Full Patent

This blockchain patent was originally filed on February 05, 2020  as U.S. Patent Application 16/783075 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11049115. The primary examiner was Mike Anderson.

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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