ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,424,081, issued on Sept. 23, was assigned to TeamOfDefenders LLC (Denton, Texas).

"Smart lock" was invented by Nathan W. Wright (Oak Point, Texas), Mark A. Cieri (Flower Mound, Texas), Kevin Stacey (Mansfield, Texas) and Daniel Yadov (Rosharon, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electromechanical Smart Lock is unlocked by the Smart Lock timely receiving a time sensitive access-code that solves a cryptographic hash algorithm (e.g., SHA-3 or the like) running on that Smart Lock. To enable this functionality, the Smart Lock knows at least three items of information: status of a countdown timer, its cryptographic hash algorithm, and it...