ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,491,396, issued on Dec. 9, was assigned to Ollite Athletics LLC (Dallas).

"Adjustable resistance extremity strengthening system and methods of using the same" was invented by Scott Alan Neal Jr. (Dallas) and Brandt Kenneth Frankie (San Jose, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for providing resistance-based extremity strengthening. The apparatus includes a base configured to be placed on or secured to a floor or other surface; a platform upon which a user is configured to place an extremity of their body to engage the apparatus; and a joint coupling the base and the platform, the joint having a fulcrum point and configured ...