US Patent Issued to Spyderco on Oct. 27 for "Tool sharpening apparatus with variable edge angle control" (Colorado Inventors)

ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,773,759, issued on Oct. 27, was assigned to Spyderco Inc. (Golden, Colo.).

"Tool sharpening apparatus with variable edge angle control" was invented by Peter H. Jhones (Wellington, Colo.), Michael D. Janich (Longmont, Colo.) and Louis Sal Glesser (Evergreen, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A sharpening device is provided that can precisely adjust the angle of sharpening stones for use in a variety of ways and with many different types of knives and tools. The sharpening device has a first holder and a second holder positioned in a base. The first holder, the second holder, and the base may have respective pluralities of apertures, w...