US Patent Issued to WELLNA on Sept. 29 for "Hair weft and preparation process thereof" (Chinese Inventors)

ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,745,813, issued on Sept. 29, was assigned to WELLNA Co. LTD (NT, Hong Kong).

"Hair weft and preparation process thereof" was invented by Junna Zou (Rongcheng City, China), Xiangpeng Lian (Rongcheng City, China) and Jiarong Sun (Rongcheng City, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A hair extension includes an upper hair extension unit, a lower hair extension unit, and an opening base connected to the upper hair base of the upper hair extension unit and the lower hair base of the lower hair extension unit, wherein the opening base has one or more openings, wherein the upper hair members of the upper hair extension unit are extended downwa...