U.S. Patent 11196573 was awarded to Nokia Technologies Oy on December 07, 2021 and is entitled “Secure de-centralized domain name system.” The first named inventor is Hongwei Li of Cambridge, . The abstract contains an overview of the patent disclosure:

A computer-implemented method for secure de-centralized domain name system, the method comprising: recording a domain registration transaction to a blockchain, the domain registration transaction comprising a domain name, a domain primary key corresponding to a domain public key and domain certificate information for a server node; recording a domain security transaction, comprising the domain public key, to the blockchain to generate a domain name record comprising the domain name, an associated IP address, the domain public key and the domain certificate information, wherein the domain security transaction being signed using the domain primary key; transmitting, by a client node, a domain name request to a domain name node; receiving, by the client node, a domain name response from the domain name node, the domain name response comprising the domain public key, the domain certificate information and the associated IP address retrieved from the domain name record of the blockchain; and initiating a secure communication between the client node and the server node using at least one of the domain public key and the domain certificate information. Link to Full Patent

This blockchain patent was originally filed on March 06, 2017  as U.S. Patent Application 16/491053 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 11196573. The primary examiner was Shewaye Gelagay.

Nokia Technologies Oy, who is the original assignee of this patent, has at least 11863 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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