U.S. Patent 11132460 was awarded to MO AC BLOCKCHAIN TECH INC. on September 28, 2021 and is entitled “Apparatus and method for controlling access to user information.” The first named inventor is Xiaohu Chen of Mountain View, CA. The abstract contains an overview of the patent disclosure:

An apparatus and method control access to user information by generating a record of user information that includes the user information and appending the record of user information to a blockchain. A hash is assigned to the user information and the record of user information is encrypted prior to appending the record of user information to the blockchain. A record of authorization is received and appended to the blockchain. The record of authorization includes the user information, an identification of a third-party application authorized to read the record of authorization, and an access expiration parameter that places a restriction or limitation on access to the user information. Link to Full Patent

This blockchain patent was originally filed on June 07, 2019  as U.S. Patent Application 16/434642 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11132460. The primary examiner was Malcolm Cribbs.

MO AC BLOCKCHAIN TECH INC., who is the original assignee of this patent, has at least 5 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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