ALEXANDRIA, Va., March 5 -- United States Patent no. 12,240,139, issued on March 4, was assigned to TECHTRONIC CORDLESS GP (Anderson, S.C.).

"Chain saw lubrication pump and control systems and methods" was invented by Andrew Burden (Newnan, Ga.), Miles Hsu (Marietta, Ga.), Isabel Novak (Fairview, N.C.), Bahiru Woldemariam (Snellville, Ga.) and Daniel Yameen (Quincy, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lubrication system for a chainsaw, the lubrication system including a reservoir housing a lubricant, a fluid conduit extending between the reservoir and a location adjacent to a chain of the chainsaw, a pump configured to move lubricant from the reservoir to the location adjacent to the chain...