ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,434,352, issued on Oct. 7.
"Knife sharpener and knife sharpening device" was invented by Shiji Qu (Liaoning, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a knife sharpener. The knife sharpener includes a hand shank and a sharpening member. Mounting portions are arranged at two ends of the hand shank. An outer diameter of each of the mounting portions is greater than an outer diameter of the hand shank. The sharpening member is connected to the mounting portions, so that the sharpening member and the hand shank rotate axially. During use, the knife sharpener is put on an operating platform, such as the ground or a t...