GENEVA, Dec. 15 -- YANG, Jiancheng (No.152, Zhongxing North Street, Triple District, Xinbei City, 3FTaiwan 241), 杨健成 (中国台湾省新北市三重区中興北街152号3F) filed a patent application (PCT/CN2024/111439) for "SMALL NEGATIVE PRESSURE MACHINE" on Aug 12, 2024. With publication no. WO/2025/251418, the details related to the patent application was published on Dec 11, 2025.
Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Organization (WIPO).
Inventor(s): YANG, Jiancheng (No.152, Zhongxing North Street, Triple District, ...