ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,561,669, issued on Feb. 24, was assigned to Wells Fargo Bank N.A. (San Francisco).

"Systems and methods for a transaction card having a cryptographic key" was invented by Deana Cook (Wilmington, Del.), Darrell L. Suen (San Ramon, Calif.) and William E. Wheeler (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of accessing an account includes receiving, from a device, randomly generated seed information and an encrypted key or token generated by a card using the randomly generated seed information via a contactless communication between the card and the device; decrypting the encrypted key or token using a decryption process that inc...