U.S. Patent 10642967 was awarded to AMERICAN EXPRESS TRAVEL RELATED SERVICES COMPANY, INC. on May 05, 2020 and is entitled “Single sign-on solution using blockchain.” The first named inventor is Andras L. Ferenczi of Peoria, AZ. The abstract contains an overview of the patent disclosure:

A single sign-on system using blockchain is disclosed. The single sign-on system may interconnect various organization systems over a peer-to-peer network, with each organization system having a blockchain node and an application programming interface (API). The blockchain node invokes and uses a smart contract to write registration credentials to the blockchain during a registration process. During a login process, the blockchain node invokes the smart contract to determine whether login credentials match stored login credentials in the blockchain. In response to matching login credentials, the API may generate a single sign-on token that can be used by a user device to access one or more organization systems connected over the network. Link to Full Patent

This blockchain patent was originally filed on November 28, 2017  as U.S. Patent Application 15/824450 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10642967. The primary examiner was Yonas A Bayou.

AMERICAN EXPRESS TRAVEL RELATED SERVICES COMPANY, INC., who is the original assignee of this patent, has at least 1156 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 1 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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