INTERNATIONAL PATENT: CHINA ACADEMY OF SAFETY SCIENCE AND TECHNOLOGY, 中国安全生产科学研究院 FILES APPLICATION FOR "STEPPED FILTER DUST MASK"

GENEVA, March 29 -- CHINA ACADEMY OF SAFETY SCIENCE AND TECHNOLOGY (Anquan Building, Building 1, Yard A, No. 32, Beiyuan RoadChaoyang District, Beijing 100020), 中国安全生产科学研究院 (中国北京市朝阳区北苑路32号院甲1号楼安全大厦) filed a patent application (PCT/CN2025/082344) for "STEPPED FILTER DUST MASK" on Mar 13, 2025. With publication no. WO/2026/060913, the details related to the patent application was published on Mar 26, 2026.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed b...