Beijing, Dec. 3 -- State Intellectual Property Office of China has released Zhejiang Industrial Univ Jianjiang College's patent application for precise positioning device for bead perforation. This invention was developed by He Guixia and Zhou Canjie. The patent application number is CN202111637662 20211229. The patent public..

Beijing, Dec. 3 -- Zhang Family Harbor Beautiful Jiurong Chemical Ind has sought patent for continuous decolorization method of cosmetic-grade polyol. This invention was developed by Xia Qianfang, Zhu Xiaodong, Liu Weijun and Han Bing. The patent application number is CN202111676794 20211231. The patent publication number is ..

Beijing, Dec. 2 -- Meibei Company has applied for Chinese patent for jewelry display device. Cavoltin Laura and Matzag Erien developed it. The patent application number is CN20208059852 20200806. The patent publication number is CN114269208 (A). International Patent Classification code is A47F7/02. Cooperative Patent Classifi..

Beijing, Dec. 1 -- Li Xiongkai has filed a patent application for jewelry production process with flickering projection function. The patent application number is CN20221069345 20220121. The patent publication number is CN114259112 (A). International Patent Classification codes are A44C17/00, A44C17/04, A44C25/00, A44C27/00, A44..

Beijing, Dec. 1 -- Shenzhen Treasure Jewelry Ltd has sought patent for equipment for forming characters on chain. This invention was developed by Xie Zhaochuang, Xie Shoufa, Xie Zhaopeng and Xie Zhaocheng. The patent application number is CN202111434608 20211129. The patent publication number is CN114261224 (A). International..

Alexandria, Nov. 29 -- U.S. Patent and Trademark Office has released Andria Arie's patent application for jewelry piece with a magnetic closure for an interchangeable ornament. This invention was developed by Roi-Sanginario R Alexandria. The patent application number is US202217806496 20220612. The patent publication number i..