GENEVA, March 8 -- CHENG, Gangqiang (North Room, 9th Floor, Unit 4, Building 18, Yuxin Yard 3, North Section of Laodong Road, Muye DistrictXinxiang, Henan 453002), 程钢强 (中国河南省新乡市牧野区劳动路北段豫新3号院18号楼4单元9楼北户) filed a patent application (PCT/CN2023/122186) for "HEAT EXCHANGE MASK" on Sep 27, 2023. With publication no. WO/2025/043807, the details related to the patent application was published on Mar 06, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the Wor...