ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,389, issued on Dec. 23, was assigned to Ramkumar Chokkalingam (Calif.).

"Bidirectional rotor device for electromechanical energy conversion and method thereof" was invented by Ramkumar Chokkalingam (Sunnyvale, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A bidirectional rotor device for electromechanical energy conversion and a method thereof is disclosed. The bidirectional rotor device comprises a first rotor, a second rotor, a plurality of planetary gears, an input actuation unit, and an electric power transferring unit. The first rotor and the second rotor counter-rotate, inducing electromagnetic interactions through strategically placed...