ALEXANDRIA, Va., June 16 -- United States Patent no. 12,308,570, issued on May 20, was assigned to Drapho Electronics Technology. Ltd (Suzhou, China).

"Electric connecting device" was invented by ZhuPing Wu (Suzhou, China) and ZhiHong Fang (Suzhou, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An electric connecting device includes an insulator with a front end abutting surface and a rear end mounting surface, a terminal module and a USB plugging module in the insulator. A first plugging cavity and a second plugging cavity distributed in a horizontal direction and a guide hole between them are arranged in the insulator. The first plugging cavity and the second plugging cavity forwardly penetrate throu...