GENEVA, July 18 -- TECMEN ELECTRONICS CO., LTD (No. 8 Huyue East Road, Longchi Street, Luhe DistrictNanjing, Jiangsu 211500) filed a patent application (PCT/CN2024/144103) for "AUTOMATIC DARKENING FILTER FOR WELDING PROTECTION" on Dec 31, 2024. With publication no. WO/2025/148748, the details related to the patent application was published on Jul 17, 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): FAN, Chengfa (No. 8 Huyue East Road, Longchi Street, Luhe DistrictNanjing, Jiangsu 211500), HU, Peng (No. 8 Huyue East Road, Longchi Street, Luhe DistrictNanjing, Jiangsu 211500)
Abstract:
The p...