ALEXANDRIA, Va., June 9 -- United States Patent no. 12,285,648, issued on April 29, was assigned to Tonal Systems Inc. (San Francisco).

"Floor-based exercise machine configurations" was invented by Michael Valente (San Francisco), Robin Barata (San Francisco), David Mallard (Mill Valley, Calif.) and Thomas Kroman Watt (San Francisco).

According to the abstract* released by the U.S. Patent & Trademark Office: "An exercise system includes a platform and a frame. The platform includes a first vertically oriented motor and a second vertically oriented motor. The first vertically oriented motor is associated with a first cable and the second vertically oriented motor is associated with a second cable. The frame includes a first adjustable atta...