ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,905, issued on Dec. 30, was assigned to Marking Services Inc. (Milwaukee).

"Ground stake and tag system" was invented by Clint Wayne Landon (San Angelo, Texas), Jeffrey Dickinson (River Hills, Wis.), John Dykstra (Mt. Pleasant, Wis.), Tim Bertram (Racine, Wis.), Terrence Lewandowski (Muskego, Wis.) and Andrew Weisensel (Oak Creek, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ground stake includes an elongate body, a face plate at a top end of the elongate body, first and second depth and installation tabs projecting sidewardly and forwardly from first and second edges of the elongate body, the first and second depth and installation tabs ea...