U.S. Patent 11200225 was awarded to NHN CORPORATION on December 14, 2021 and is entitled “Method and blockchain for constructing sub blockchain in blockchain system comprising distributed network of plurality of nodes.” The first named inventor is Paul Park of Gyeonggi-do, . The abstract contains an overview of the patent disclosure:

A method for constructing a sub-blockchain in a blockchain system comprising a distributed network of nodes comprises generating and propagating, by one of the nodes, a candidate sub-block comprised in a sub-blockchain to be connected to one of main blocks included in a main blockchain; validating the candidate sub-block and storing and propagating the validated candidate sub-block by one of the nodes; validating a content block received from a node which generated the candidate sub-block corresponding to content queried by a user and storing and propagating an end block connected to the content block by one of the nodes; and if the number of the same end blocks received from other nodes is larger than a preconfigured value, generating an approved sub-block, and propagating the approved sub-block by one of the nodes while updating the approved sub-block to a local copy of a blockchain. Link to Full Patent

This blockchain patent was originally filed on November 15, 2019  as U.S. Patent Application 16/684598 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11200225. The primary examiner was Cheryl Lewis.

NHN CORPORATION, who is the original assignee of this patent, has at least 195 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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