GENEVA, Dec. 23 -- HYOSUNG CHEMICAL CORPORATION (235, Banpo-daeroSeocho-guSeoul 06578), 효성화학 주식회사 (서울특별시서초구반포대로 235) filed a patent application (PCT/KR2025/095325) for "FILM FOR BARRIER LAYER, POLYKETONE MULTILAYER FILM, AND PACKAGING MATERIAL" on May 16, 2025. With publication no. WO/2025/259083, the details related to the patent application was published on Dec 18, 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): KIM, Byungnam (20-6, Gyeongsu-daero 1020...