U.S. Patent 10990982 was awarded to INTERNATIONAL BUSINESS MACHINES CORPORATION on April 27, 2021 and is entitled “Authenticating a payment card.” The first named inventor is Roxana Monge Nunez of Perez Zeledon, . The abstract contains an overview of the patent disclosure:

An approach is provided for authenticating a payment card. Information is read from the payment card being used for a purchase. The information includes an identifier and data on a chip, in braille cells, and in markings in the payment card. A hash read from the chip, the identifier, and security codes derived from the braille cells and the markings are sent to a payment system. A hash of an (n+1)-th block of a blockchain is received and recorded in the chip in response to validations of the hash as matching a hash of an n-th block of the blockchain, the identifier, and the first and second security codes, and a generation of the hash of the (n+1)-th block. Data about the purchase and the hash of the (n+1)-th block are sent to the payment system. Link to Full Patent

This blockchain patent was originally filed on November 27, 2017  as U.S. Patent Application 15/822564 at the United Stated Patent and Trademark Office. The application was them awarded a patent grant and published as U.S. Patent 10990982. The primary examiner was Zeshan Qayyum.

INTERNATIONAL BUSINESS MACHINES CORPORATION, who is the original assignee of this patent, has at least 150818 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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