ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,591, issued on Jan. 13, was assigned to Freak Athlete Essentials LLC (Casper, Wyo.).

"Exercising device for developing, strengthening and/or rehabilitating the muscles or joints of the body" was invented by Andreas Efrain Ilmari Mehtala (Alicante, Spain).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to an exercising device for developing, strengthening and/or rehabilitating the muscles or joints of the body by working against a counterforce. More particularly, this invention relates to a portable electric resistance exercise device capable of performing multiple exercises for strength and endurance training."

The paten...