U.S. Patent 10541991 was awarded to COINPLUG, INC. on January 21, 2020 and is entitled “Method for OAuth service through blockchain network, and terminal and server using the same.” The first named inventor is Joon Sun Uhr of Gyeonggi-do, . The abstract contains an overview of the patent disclosure:

A method for authentication based on a blockchain network is provided. The method includes steps of: an authentication-supporting server (a) if verification is requested by a certificate authority (CA) app, verifying a signature value and transmitting an access token to a user device, supporting the CA-affiliate app to transmit a login request to a CA-affiliate server, and registering the access token in the blockchain network, and transmitting a verification request to the blockchain network to transmit the access token to the authentication-supporting server, and register the access token in the blockchain network, and transmitting the access token to the user device, and transmit the login request to the CA-affiliate server, and (b) performing one of (i) verifying the access token, and (ii) transmitting the verification request to the blockchain network, and transmitting a verification-result to the CA-affiliate server, to allow the CA-affiliate app to log in to the CA-affiliate server. Link to Full Patent

This blockchain patent was originally filed on March 28, 2019  as U.S. Patent Application 16/368665 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10541991. The primary examiner was Meng Li.

COINPLUG, INC., who is the original assignee of this patent, has at least 34 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.

Select IP monitors top patents and patents which have been allowed and granted worldwide. We are experts in patent law with experience blockchain technology and IP law and intellectual property law as it pertains to blockchain technology and cryptocurrency patents. If you are interested in connecting with an IP law attorney or patent law attorney, please contact us via the contact form.

Patentability Searches – Determine the patentability of your inventions.
Freedom to Operate Searches & Opinions – Identify patents may give you potential infringement issues (including in the recording, communication or information retrieval equipment field).
Non-Infringement Opinions – Determine if your product infringes a competitor’s patent.
Patent Invalidity Searches & Opinions – Find prior art to invalidate a competitor’s patent.
U.S. Provisional Patent Applications – Receive cost-effective “patent pending” status for your invention.
U.S. Non-Provisional Patent Applications (Utility) – Apply for patent protection on the structural and functional aspects of your invention.
U.S. Design Patent Applications – Apply for patent protection on the ornamental appearance of your invention.