U.S. Patent 11212094 was awarded to Banco Bilbao Vizcaya Argentaria, S.A. on December 28, 2021 and is entitled “Joint blind key escrow.” The first named inventor is Louie Gasparini of San Mateo, CA. The abstract contains an overview of the patent disclosure:

A computer-implemented method for escrowing secret data in a server of a client-server network, the client-server network comprising: a first client having at least one public and private client key pairs, at least one trusted client having at least one public and private trusted client key pairs, a server having a public and private server key pairs, a blockchain system comprising a plurality of nodes which are configured to store the public keys of the elements of the client-server network. It is also described a computer-implemented method for obtaining secret data of a server wherein the secret data is escrowed with the above computer-implemented method for escrowing secret data in a server. System, computer-readable mediums and computer programs, which are configured to implement or perform said computer-implemented methods, are also described. Link to Full Patent

This blockchain patent was originally filed on September 27, 2018  as U.S. Patent Application 16/650301 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11212094. The primary examiner was John B King.

Banco Bilbao Vizcaya Argentaria, S.A., who is the original assignee of this patent, has at least 12 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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