ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,384,476, issued on Aug. 12, was assigned to BULL MOOSE HEAVY HAUL INC. (Chesterfield, Mo.).

"Hydraulic actuated trailer flip-axle" was invented by Jeremy James Sjovall (Burbank, S.D.), Scott Daniel Reithmeier (Missoula, Mont.), Madison Lee Gravel (Central City, Iowa) and Timothy John McGreal (Manchester, Iowa).

According to the abstract* released by the U.S. Patent & Trademark Office: "A system for moving a flip axle assembly relative to a trailer, includes a trailer pivotally connected to a flip axle assembly, where a rotation assembly moves the flip axle assembly between a ground-engaging position and a stowed position. The rotation assembly includes a first linkage connected to th...