ALEXANDRIA, Va., June 17 -- United States Patent no. 12,311,756, issued on May 27, was assigned to MERCEDES-BENZ GROUP AG (Stuttgart, Germany).

"Electric drive unit for a motor vehicle, in particular for a motor car" was invented by Tobias Schilder (Ludwigsburg, Germany), Tobias Haerter (Stuttgart, Germany), Jonathan Zeibig (Aalen, Germany), Philip Gansloser (Bad Ditzenbach, Germany) and Carsten Gitt (Stuttgart, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electric drive unit includes a first electric engine having a first rotor, a second electric engine having a second rotor, and a transmission unit having a differential transmission with exactly three first shafts arranged coaxially with one a...