U.S. Patent 10848318 was awarded to COINPLUG, INC. on November 24, 2020 and is entitled “System for authenticating certificate based on blockchain network, and method for authenticating certificate based on blockchain network by using same.” The first named inventor is Joo Han Song of Gyeonggi-do, . The abstract contains an overview of the patent disclosure:

A method for authenticating a specific user by using certificates including a specific certificate of the specific user based on a blockchain network is provided. The method includes steps of: an authentication-supporting server, (a) on condition that a transaction is stored in a distributed database on the blockchain network from when a previous anchoring condition is satisfied to when a current anchoring condition is satisfied, wherein the transaction includes a root hash value created by a Merkle tree operation to leaf nodes having hash values of the certificates and the certificates including public keys of users, root hash identification information, and a transaction ID for locating the transaction on the distributed database are stored in the authentication-supporting server as corresponding to the specific user, if authentication of the specific user is requested, confirming validity of the specific certificate; and (b) if the specific certificate is valid, authenticating the specific user. Link to Full Patent

This blockchain patent was originally filed on November 15, 2018  as U.S. Patent Application 16/191480 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10848318. The primary examiner was Kevin Bechtel.

COINPLUG, INC., who is the original assignee of this patent, has at least 34 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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