ALEXANDRIA, Va., June 16 -- United States Patent no. 12,654,055, issued on June 16, was assigned to Bulletproof Fitness Equipment Inc (Acton, Calif.).

"Barbell" was invented by Nicole K Nolan (Santa Clarita, Calif.), Lawrence R Nolan (Santa Clarita, Calif.) and Christopher I Gaddy (Brooklyn, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A barbell includes a frame with a first outer bar and a second outer bar forming an opening therebetween; a first handle assembly mounted within the opening and having a first handle supported by a first outer member; and a first inner member rotationally engaged with the first outer member such that the first outer member can spin about the first inner member to alter ...