US Patent Issued to International Business Machines on May 6 for "Securely preserving prior security tokens for recall" (Texas, North Carolina, New York Inventors)

ALEXANDRIA, Va., June 10 -- United States Patent no. 12,294,573, issued on May 6, was assigned to International Business Machines Corp. (Armonk, N.Y.).

"Securely preserving prior security tokens for recall" was invented by Chunlong Liang (Travis, Texas), Jose Angel Rodriguez (Austin, Texas), James T. Mulvey (Red Hook, N.Y.), Jose I. Ortiz (Raleigh, N.C.) and Xiaoyan Yanni Zhang (Austin, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An approach for optimizing security token exchange. The approach receives a first request from a client. The approach extracts a first security token and an API reference. The approach validates the first security token. If the security token is valid, then the approach, ca...