ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,513,140, issued on Dec. 30, was assigned to Lenovo (Singapore) Pte. Ltd. (Singapore).

"Multifactor access authenticator" was invented by Rafael Rodrigues Machado (Sorocaba, Brazil), Scott Li (Cary, N.C.), Igor Stolbikov (Apex, N.C.) and Nathan Peterson (Oxford, N.C.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A computer implemented method includes receiving, at device that includes a locked basic input/output system (BIOS), a support service generated one-time code based on a private key and a support service counter, validating the device one-time code based on a public key associated with the private key and a device counter, and unlocking the BIOS...