ALEXANDRIA, Va., June 5 -- United States Patent no. 12,278,577, issued on April 15, was assigned to Black & Decker Inc. (New Britain, Conn.).
"Power tool battery pack" was invented by Alexander R. Barton (Baltimore), Mark T. Cherry (White Marsh, Md.), Timothy J. Hennesy (Baltimore), William Thomas Lunsford V (Towson, Md.), Michael W. Roberts (Red Lion, Pa.), Nathan J. Osborne (Baltimore), Elizabeth Wink (Baltimore), Daniel F. Nace (Towson, Md.) and Philip Gilde (Baltimore).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present directed to a cordless power tool system including a plurality of cordless power tools, a plurality of fixed voltage and multi-voltage battery packs and a plurality of battery pack ...