ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,721,260, issued on Sept. 1, was assigned to Greenworks (Jiangsu) Co. Ltd. (Changzhou, China).

"Walk-behind mower" was invented by Bing Tian (Changzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A lawn mower includes a cutter assembly, a housing, and a power assembly supplying power for the cutter assembly. The cutter assembly includes a first/second blade. The first blade and the second blade are staggered and arranged back and forth. The housing includes a mowing space. The mowing space includes a first/second mowing cavity communicating with each other and respectively housing the first/second blade. A width of the mowing space is greater t...