ALEXANDRIA, Va., May 26 -- United States Patent no. 12,640,928, issued on May 26, was assigned to Ruckus IP Holdings LLC (Horsham, Pa.).

"Device-independent authentication based on a passphrase and a policy" was invented by David Sheldon Stephenson (San Jose, Calif.), Ron Sidi (San Jose, Calif.) and Ming-Jye Sheu (Saratoga, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electronic device that selectively approves secure access of a second electronic device to a network is described. This electronic device receives an access request associated with a computer, where the access request includes passphrase parameters associated with a user, and the passphrase parameters include inputs to and an output...