INTERNATIONAL PATENT: CHINA TOBACCO YUNNAN INDUSTRIAL CO., LTD, 云南中烟工业有限责任公司 FILES APPLICATION FOR "DOUBLE-LAYER PACKAGING FILM, PREPARATION METHOD THEREFOR AND USE THEREOF"

GENEVA, Feb. 22 -- CHINA TOBACCO YUNNAN INDUSTRIAL CO., LTD (No.6, Shibo Road, Panlong DistrictKunming, Yunnan 650233), 云南中烟工业有限责任公司 (中国云南省昆明市盘龙区世博路6号) filed a patent application (PCT/CN2025/070061) for "DOUBLE-LAYER PACKAGING FILM, PREPARATION METHOD THEREFOR, AND USE THEREOF" on Jan 02, 2025. With publication no. WO/2026/036644, the details related to the patent application was published on Feb 19, 2026.

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