ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,483,821, issued on Nov. 25, was assigned to LUXSHARE PRECISION INDUSTRY COMPANY Ltd. (Shenzhen, China).
"Sound generating apparatus" was invented by Wei Yang (Shenzhen, China), Xiaolong Liu (Shenzhen, China) and Weiqiang Yao (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a sound generating apparatus including a rear housing, a speaker assembly, a front housing, and a vent frame. The rear housing is provided with an accommodation groove and a rear chamber groove. The outer wall of the rear housing is provided with a vent hole. The speaker assembly is disposed in the notch of the rear chamber groove and covers the rear chamber...