INTERNATIONAL PATENT: YU, CHENGPENG, 余成鹏 FILES APPLICATION FOR "PEN ALLOWING FOR GRAVITY-BASED REFILL RETRACTION"

GENEVA, Sept. 8 -- YU, Chengpeng (No. 228, Wenzhou Avenue, Building A, Room 401, PuzhouSubdistrict, Longwan DistrictWenzhou, Zhejiang 325024), 余成鹏 (中国浙江省温州市龙湾区蒲州街道温州大道228号A幢401室) filed a patent application (PCT/CN2024/134797) for "PEN ALLOWING FOR GRAVITY-BASED REFILL RETRACTION" on Nov 27, 2024. With publication no. WO/2025/179992, the details related to the patent application was published on Sep 04, 2025.

Notably, the patent application was submitted under the International Patent Classification (IPC) system, which is managed by the World Intellectual Property Orga...