US Patent Issued to SHENZHEN GRANDSUN ELECTRONIC on Jan. 27 for "Noise reduction earpad, noise reduction earmuff and noise reduction headphone" (Chinese Inventors)

ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,536,986, issued on Jan. 27, was assigned to SHENZHEN GRANDSUN ELECTRONIC Co. LTD. (Shenzhen, China).

"Noise reduction earpad, noise reduction earmuff and noise reduction headphone" was invented by Xin Yu (Shenzhen, China), Weiyong Gong (Shenzhen, China) and Haiquan Wu (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The noise reduction earpad includes: an earpad body and an earpad cover, the earpad body is made of a porous flexible material or a foam flexible material and being in a ring shape and being connected to the connection surface, the earpad body and the connection surface jointly forming a sealed and soundproof space provided wi...