ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,478,206, issued on Nov. 25, was assigned to NINGBO LIYANG NEW MATERIAL COMPANY Ltd. (Zhejiang, China).

"External punching-free mounting mechanism for curtain" was invented by Baoguo Tan (Zhejiang, China), Jianhong Wei (Zhejiang, China) and Yi Ding (Zhejiang, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An external punching-free mounting mechanism for a curtain, comprising a cross beam exposed outside a window frame, a first mounting assembly and a second mounting assembly supporting the cross beam in the window frame in a cooperative way, and the first mounting assembly and the second mounting assembly are oppositely connected to the cross beam;...