US Patent Issued to PLAYCORE WISCONSIN on March 18 for "Topographical playground structures, a structural framework thereof, and a method of making the topographical structures" (Alabama Inventors)

ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,618, issued on March 18, was assigned to PLAYCORE WISCONSIN INC. (Chattanooga, Tenn.).

"Topographical playground structures, a structural framework thereof, and a method of making the topographical structures" was invented by Thomas Robert Norquist (Fort Payne, Ala.), Tin-Man Lau (Auburn, Ala.) and Elisabeth Mathis (Birmingham, Ala.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure is directed to artificial topographical structures, such as mounds, installed at playgrounds using a structural framework. The structural framework is made up of a first plurality of panels extending in a first direction and a second plurality of pane...