ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,494, issued on May 13, was assigned to SLEEPING TIGER LTD. (Mundelein, Ill.).
"Self-defense device" was invented by Deborah A. Donahoe (Mundelein, Ill.) and David E. Machamer (Wauconda, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A self-defense device including a wrist-wearable wearable holder and knife detachably coupled to the wearable holder. The knife includes a handle, body, arm and blade, wherein the handle is coupled to the body and the arm is coupled to the body and blade. The handle, arm and blade are each configured to move relative to the body between retracted and extended positions. The body preferably has a substantially round ...