US Patent Issued to YSL & C on July 14 for "Compostable medical face mask" (Chinese Inventors)

ALEXANDRIA, Va., July 14 -- United States Patent no. 12,677,889, issued on July 14, was assigned to YSL & C Ltd. (Hong Kong, Hong Kong).

"Compostable medical face mask" was invented by Siu Lung Yu (Hong Kong, Hong Kong), Yuyan Song (Hong Kong, Hong Kong), Sik Chun Johnny Lo (Hong Kong, Hong Kong), Yeuk Tin Lau (Hong Kong, Hong Kong) and Sui Han Sin (Hong Kong, Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "A compostable medical mask is provided with a printable outer non-woven layer. The outer non-woven layer includes bonded first fibers with first fiber diameters in a range from approximately 1 micron to approximately 100 microns. At least one intermediate non-woven filtration layer is provided. T...