ALEXANDRIA, Va., Dec. 9 -- United States Patent no. 12,490,671, issued on Dec. 9, was assigned to Shenzhen Hua Xin Information Technology Co. Ltd. (Shenzhen, China).

"Robotic lawnmower" was invented by Hanjun Liu (Shenzhen, China) and Bin Chen (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A robotic lawnmower comprising a robotic body and a trimmer mechanism. A mount column hole is arranged in a side face of the robotic body. The trimmer mechanism includes a mount, a trimmer head and a drive motor. The mount includes a stand a connection portion. The connection portion is fixedly connected to the stand configured to be inserted into the mount hole. The trimmer head is rotatably arranged on a...