ALEXANDRIA, Va., May 19 -- United States Patent no. 12,634,616, issued on May 19, was assigned to SHENZHEN SHOKZ Co. LTD. (Shenzhen, China).

"Earphones" was invented by Jiang Xu (Shenzhen, China), Zeying Zheng (Shenzhen, China) and Haofeng Zhang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to an earphone including a sound production component and an ear hook. In a wearing state, the ear hook is configured to place the sound production component at a position near an ear canal but not blocking the ear canal. An inner contour of a projection of the ear hook on the user's sagittal plane includes a first curve that has an extremum point in a first direction. The ...