GENEVA, Feb. 1 -- CHINA TIANCHEN ENGINEERING CORPORATION (No. 1, Jingjin RoadBeichen District, Tianjin 300400), 中国天辰工程有限公司 (中国天津市北辰区京津路1号), CHINA CHEMICAL TIANCHEN (QUANZHOU) NEW MATERIAL CO. (No. 17 Yuannan Road, Quangang DistrictQuanzhou, Fujian 362801), 中化学天辰(泉州)新材料有限公司 (中国福建省泉州市泉港区园南路17号) filed a patent application (PCT/CN2025/104441) for "HYDROGEN PEROXIDE CONCENTRATION S...