U.S. Patent 11102001 was awarded to Hitachi, Ltd. on August 24, 2021 and is entitled “Trust management system and trust management method.” The first named inventor is Tatsuya Sato of Tokyo, . The abstract contains an overview of the patent disclosure:

A verification node in a trust management system manages, in a blockchain, a smart contract and an execution transaction of the smart contract as well as an evaluation execution transaction for the smart contract. The verification node includes and manages a verification result of the smart contract in the evaluation execution transaction, the verification result including a predetermined value for evaluation specified by a predetermined one of transaction issuing nodes and an output value obtained when the predetermined value is inputted to the smart contract, or includes and manages the output value in state information. Link to Full Patent

This blockchain patent was originally filed on January 18, 2018  as U.S. Patent Application 16/483486 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11102001. The assistant examiner was Stephanie S Ham.

Hitachi, Ltd., who is the original assignee of this patent, has at least 43825 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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