ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,209, issued on May 5, was assigned to Concaten Inc. (Golden, Colo.).

"Emergency response barrier" was invented by Kevin K. Groeneweg (Golden, Colo.) and Taylor Groeneweg (Golden, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An emergency response barrier is shown and described, the barrier having a frame with reinforcing bracing; two axles coupled to the frame with wheels attached thereto; a king pin coupled to the frame; wherein the frame is covered with a substantially planar skin that extends along the right and left sides of the frame, from a top of the frame down to a lower edge and covers a majority of the wheels on each side of the barri...