ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,502, issued on July 15, was assigned to SHEEN WORLD TECHNOLOGY Corp. (Taichung, Taiwan).
"Ladder rope retaining device for venetian blind" was invented by Po-Yu Chen (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ladder rope retaining device includes a support base, a rotating base, and an elastic positioning member. The support base has a bottom wall and two opposite straight walls connected with the bottom wall and each having a pivot trough. The rotating base includes a pivot pivotally disposed in the pivot troughs, and a ladder rope retaining portion formed on the pivot. The pivot has a plurality of positioning recesses arran...