ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,277, issued on Feb. 17, was assigned to SHENZHEN YANGWO ELECTRONIC Co. LTD (Shenzhen, China).

"Hair-removal apparatus" was invented by Dejin Duan (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates generally to a hair-removal apparatus, which includes a main body and a light-filtering member, with at least one sensing element disposed thereon, detachably connected to the main body. When the light-filtering member is connected to the main body, the main body recognizes the sensing element. The light-filtering member is detachably connected to the main body, so that users can easily replace the light-filterin...