ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,765,624, issued on Oct. 20, was assigned to WELLNA Co. LTD (NT, Hong Kong).
"Hair extension and manufacturing apparatus and method thereof" was invented by Junna Zou (Rongcheng City, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses a hair extension, including a hair extension fixing portion and a hair extension body, wherein the hair extension body is connected to the hair extension fixing portion, the hair extension fixing portion further comprises a connecting hair strand layer, a second hair strand layer, a third hair strand layer, a fourth hair strand layer, two first stitching threads, a second stitching thread, ...