US Patent Issued to THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY on July 28 for "Ultra-low frequency acoustic absorber" (Chinese Inventors)

ALEXANDRIA, Va., July 28 -- United States Patent no. 12,694,859, issued on July 28, was assigned to THE HONG KONG UNIVERSITY OF SCIENCE AND TECHNOLOGY (Hong Kong).

"Ultra-low frequency acoustic absorber" was invented by Ping Sheng (Hong Kong), Ho Yiu Mak (Hong Kong), Xiaonan Zhang (Hong Kong) and Zhen Dong (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "The ultra-low frequency acoustic absorber (10) includes a hollow housing (12) having opposed first and second open ends (22, 24), and a plurality of metallic mesh layers (16) stacked within the housing (12). In order to secure the plurality of metallic mesh layers (16) within the hollow housing (12), first and second mesh covers (18, 20) may cover t...