U.S. Patent 11177943 was awarded to PUSHPULL SYSTEM CO., LTD. on November 16, 2021 and is entitled “Digital electronic device based on dual blockchain having virtual blockchain and operation method thereof.” The first named inventor is SungMyun Song of Sejong-si, . The abstract contains an overview of the patent disclosure:

A digital electronic device, which performs authentication using a blockchain, includes: a physical node that is connected to a physical blockchain network and a virtual blockchain network constructed in the digital electronic device, and has attribute information including pubic key information, private key information, a unique identifier (ID), and a password available for encryption of a block including transaction data through the blockchain networks; at least one virtual node that is connected to the virtual blockchain network and has attribute information including pubic key information, private key information, a unique identifier (ID), and a password available for encryption of a block including transaction data through the virtual blockchain network; and a short range communication interface module configured to be able to directly communicate with a user communication device without passing through a gateway. Link to Full Patent

This blockchain patent was originally filed on November 26, 2019  as U.S. Patent Application 16/695923 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11177943. The primary examiner was Harunur Rashid.

PUSHPULL SYSTEM CO., LTD., who is the original assignee of this patent, has at least 1 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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