ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,516, issued on March 11, was assigned to General Electric Co. (Evendale, Ohio) and GE Avio S.r.l. (Rivalta di Torino, Italy).

"Counter-rotating gas turbine engines including turbine sections with separable torque frames" was invented by Ranganayakulu Alapati (Bangalore, India), Peeyush Pankaj (Bangalore, India), Sanjeev Sai Kumar Manepalli (Bangalore, India), Bhaskar Nanda Mondal (Bangalore, India), Thomas Moniz (Loveland, Ohio), N V Sai Krishna Emani (Bengaluru, India), Shishir Paresh Shah (Bangalore, India), Anil Soni (Bengaluru, India), Praveen Sharma (Bangalore, India), Randy T. Antelo (Silverthorne, Colo.) and Antonio Giuseppe D'Ettole (Rivoli, Italy).

According to the abst...