U.S. Patent 10594487 was awarded to INTERNATIONAL BUSINESS MACHINES CORPORATION on March 17, 2020 and is entitled “Password management and verification with a blockchain.” The first named inventor is Howard N. Anglin of Leander, TX. The abstract contains an overview of the patent disclosure:

An example operation may include one or more of determining whether one or more password strings are related to a password, the password strings are transmitted from a user device, hashing the one or more password strings to create one or more password hash values, determining whether the one or more password hash values match any internal password hash values of an internal password history chain stored in an internal blockchain, determining whether the one or more password hash values match any external password hash values of an external password history chain stored in an external blockchain, and responsive to determining the one or more password hash values do not match any internal password hash value and any external password hash values, storing a new password in one or more of the internal blockchain and the external blockchain. Link to Full Patent

This blockchain patent was originally filed on July 27, 2017  as U.S. Patent Application 15/661018 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10594487. The assistant examiner was Adrian Stoica.

INTERNATIONAL BUSINESS MACHINES CORPORATION, who is the original assignee of this patent, has at least 150818 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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