ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,506,994, issued on Dec. 23, was assigned to SHENZHEN SHOKZ Co. LTD. (Shenzhen, China).

"Open earphones" was invented by Lei Zhang (Shenzhen, China), Peigeng Tong (Shenzhen, China), Guolin Xie (Shenzhen, China), Yongjian Li (Shenzhen, China), Jiang Xu (Shenzhen, China), Tao Zhao (Shenzhen, China), Duoduo Wu (Shenzhen, China), Ao Ji (Shenzhen, China) and Xin Qi (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an open earphone, comprising a sound production component and an ear hook. The ear hook may include a first portion and a second portion connected in sequence. The first portion may be hung between the auricle of a user an...