Beijing, July 21 -- State Intellectual Property Office of China has published Shenyang Moonlight Jewelry Mfg Co Ltd patent application for Jewelry Chain Pulley Polishing Device. The invention was developed by Zhao Wei. The patent application number is CN202411468015 20241021. The patent publication number is CN121893137 (A). ..

Geneva, July 21 -- Sahajanand Tech Private Limited has applied WIPO patent for System and Method for Separating Individual Gemstones from a Batch of Gemstones. Davra Nilesh Mansukhbhai, Gajjar Munjal Dhirajlal and Gaywala Rahul Mahendrakumar developed it. The patent application number is WO2026IN50041 20260112. The patent pub..

Alexandria, July 20 -- U.S. Patent and Trademark Office has released Zhang Lei, Zhang Zhen and Zhang Dongtian patent application for Apparatus for Jewelry Surface Processing. The patent application number is US202519017893 20250113. The patent publication number is US20260201593 (A1). International Patent Classification code..

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..