U.S. Patent 10652014 was awarded to nChain Holdings Limited on May 12, 2020 and is entitled “Determining a common secret for the secure exchange of information and hierarchical, deterministic cryptographic keys.” The first named inventor is Craig Steven Wright of London, . The abstract contains an overview of the patent disclosure:

A method (300) and system (1) of determining a common secret for two nodes (3, 7). Each node (3, 7) has a respective asymmetric cryptography pair, each pair including a master private key and a master public key. Respective second private and public keys may be determined based on the master private key, master public key and a deterministic key. A common secret may be determined at each of the nodes based on the second private and public keys. In one example, a node (3, 7) may determine the common secret based on (i) a second private key based on the node’s own master private key and the deterministic key; and (ii) a second public key based on the other node’s master public key and the deterministic key. The invention may be suited for use with, but not limited to, digital wallets, blockchain (e.g. Bitcoin) technologies and personal device security. Link to Full Patent

This blockchain patent was originally filed on February 16, 2017  as U.S. Patent Application 16/078630 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10652014. The primary examiner was Samson B Lemma.

nChain Holdings Limited, who is the original assignee of this patent, has at least 18 total granted patents in the United States as of the date of this article. This blockchain patent has been cited 1 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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