On February 7, 1984, Timothy G. Zell was issued U.S. Patent No. 4,429, 685 on a Surgical Procedure.
The surgical procedure was a “method of forming a unicorned animal having what is thought to be a higher mental capacity and greater physical capabilities.”
On February 6, 1934, William D. Coolidge was issued U.S. Patent No. 1,946,312 on an X-Ray Tube, for creating x-rays for medical imaging at lower voltages:
On February 5, 1974, Raymond Damadian was issued U.S. Patent No. 3,789,832 on Apparatus and Method for Detecting Cancer in Tissue — MRI imaging for the detection of cancer.