ALEXANDRIA, Va., April 21 -- United States Patent no. 12,609,477, issued on April 21, was assigned to WENZHOU HUAYA ELECTRIC Co. LTD (Leqing City, China).

"Protection device for socket safety shutter" was invented by Yunhua Lin (Leqing City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A protection device for a socket safety shutter includes a device body having a boss; a reinforcing plate is arranged on one side of the boss, and is integrated with the boss; a limiting baffle plate is arranged on one side surface of the device body; and the limiting baffle plate is of a bent structure. The reinforcing plate is arranged on one side of the boss, so that direct contact between a side surface of the boss...