ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,733,794, issued on Sept. 15, was assigned to Welch Allyn Inc. (Skaneateles Falls, N.Y.).

"Visually linear and discrete dimming for ophthalmoscopes and otoscopes and other medical examination or diagnostic instruments" was invented by David Matthew Babson (Warners, N.Y.), Kenneth V. Coon III (Jordan, N.Y.), David Gregory Perkins (Tully, N.Y.), James Paul Knoop (Syracuse, N.Y.) and James Stuart Ledwith (Syracuse, N.Y.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are medical examination or diagnostic instruments and methods of operating such instruments. The method can include coupling an instrument head to a handle to form a medical examinati...