ALEXANDRIA, Va., June 12 -- United States Patent no. 12,295,723, issued on May 13, was assigned to Alps South LLC (St. Petersburg, Fla.).

"Apparatus for volume management of residual limb" was invented by Aldo Laghi (Pinellas Park, Fla.) and Nathaniel Vint (Pam Harbor, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus for residual limb volume management. Specifically the present invention relates to tapered prosthetic socks used in combination with a measuring template such that, when compressed, a user can see whether or not their residual limb has swelled or shrunk. The point at which the top edge of the socket of the prosthetic stops when in a compressed stance is the "0" mark on the measur...