ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,425,761, issued on Sept. 23, was assigned to SHENZHEN CANNICE TECHNOLOGY Co. LTD. (Shenzhen, China).
"Earphone" was invented by Ke Chen (Shenzhen, China), En Xie (Shenzhen, China), Xiaoting Guo (Shenzhen, China) and Yunfeng Zhang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An earphone includes a housing provided with an accommodating groove and an opening groove. The opening groove connects the accommodating groove and the outside of the housing. A first hole is formed in the groove bottom of the accommodating groove. The earphone further includes an ear hanger, wherein one end of the ear hanger is provided with a rotating part inse...