ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,539,639, issued on Feb. 3, was assigned to Black & Decker Inc. (New Britain, Conn.).
"Chain saw" was invented by Nathan Vincent Greene (Baltimore), Marina Aleksandrovna Rubanchenko (Bel Air, Md.), Jaren Austin Passey (Baltimore) and Conor Christopher Hantzschel (West Islip, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "According to examples, a power tool may include a chassis and a guide bar mounted to the chassis, the guide bar having a central axis. The power tool may also include a handle attached to the chassis above the central axis of the guide bar and a motor housed within the chassis to drive a chain around the guide bar, in which the motor...