ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,453,888, issued on Oct. 28, was assigned to Memorial Sloan Kettering Cancer Center (New York).
"Supine stepper" was invented by Grigory Syrkin (New York) and Samuel Hellman (New York).
According to the abstract* released by the U.S. Patent & Trademark Office: "A stepper includes a base defining a horizontal plane, a first track structure coupled to the base and configured to translate along a first track, a first force receiving member coupled to the first track structure, a second track structure coupled to the base and configured to translate along a second track, a second force receiving member coupled to the second track structure, and a reciprocating mechanism coupled to the fir...