ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,442, issued on March 31, was assigned to Kreg Enterprises Inc. (Ankeny, Iowa).

"Self-adjusting pocket hole jig system" was invented by Shelby Strempke (Kelley, Iowa), Timothy J. Forbes (Ankeny, Iowa), Scott Schaaf (Ankeny, Iowa), Derek Steelman (Ankeny, Iowa) and Kevin Shin (Phoenixville, Pa.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A self-adjusting pocket hole jig system is presented having a base, an upright assembly operably connected to the base, a clamping assembly, operably connected to the upright assembly, a handle operably connected to the clamping assembly, and a drill guide assembly operably connected to the clamping assembly. The ...