ALEXANDRIA, Va., March 5 -- United States Patent no. 12,239,550, issued on March 4, was assigned to Paragon 28 Inc. (Englewood, Colo.).

"Joint replacement alignment guides, systems and methods of use and assembly" was invented by Daniel J. Lee (Denver), Joseph Dogue (Aurora, Colo.) and Spanky Raymond (Uniontown, Ohio).

According to the abstract* released by the U.S. Patent & Trademark Office: "Instruments, devices, systems and methods for maintaining, correcting and/or fusing joint deformities are disclosed. The system includes a first translation mechanism, a second translation mechanism coupled to the first translation mechanism, and a third translation mechanism coupled to the second translation mechanism, and a tower coupled to the th...