ALEXANDRIA, Va., July 21 -- United States Patent no. 12,689,861, issued on July 21, was assigned to OXTI PTE LTD (Singapore).

"Bone conduction assistive hearing aid" was invented by Chih-Feng Ho (Singapore).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is a bone conduction assistive hearing aid, including a main body, which includes a hearing aid mechanism and an adhesive layer. One side of the adhesive layer is provided with ventilation holes that penetrate through the adhesive layer. The bottom end of the adhesive layer is provided with a rubber bent rod, in which a flexible metal wire is arranged. One end of the rubber bent rod is provided with a docking hole, and a spherical hole at one end of ...