ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,508,178, issued on Dec. 30, was assigned to STEM S.R.L. (Medesano, Italy).
"Ambulance stretcher" was invented by Ezio Menna (Collecchio, Italy) and Michele Corradi (Parma, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ambulance stretcher, which comprises: a support frame for supporting a patient; a pair of front legs, each having a front wheel; a pair of rear legs, each having a rear wheel; a front coupling body connected to a front end of the support frame; characterized in that the coupling body comprises a spherical or hemispherical coupling head arranged on a vertical longitudinal median plane of the support frame."
The patent was filed o...