Beijing, July 18 -- State Intellectual Property Office of China has received Changchun Gold Research Institute Co Ltd patent application for Method for Titration Determination of Platinum Content in Platinum Jewelry by Automatic Potentiometric Method. Zhang Yu, Gao Zhenguang, Lu Xingen, Hong Bo, Yang Xing, Su Guangdong and Zhang..

Seoul, July 14 -- Shin Young Pil has submitted a patent application for Cattle Necklace Frame That Can be Opened and Closed Automatically. The patent application number is KR20230083947 20230629. The patent publication number is KR20250001568 (A). International Patent Classification codes are A01K15/04 and A01K5/00. Cooperat..

Alexandria, July 13 -- Mft Dhorlogerie Audemars Piguet Sa has applied United States patent for Length-adjustable Link for a Bracelet. Jean-prost Christian developed it. The patent application number is US202319130031 20231108. The patent publication number is US20260191305 (A1). International Patent Classification code is A44..

Alexandria, July 13 -- Tehranian Moris has sought patent for Cluster Setting for Jewelry. The patent application number is US202419130546 20241114. The patent publication number is US20260191306 (A1). International Patent Classification code is A44C17/04. Cooperative Patent Classification code is A44C17/046 (EP, US).