INTERNATIONAL PATENT: CHEMETALL GMBH, BASF (CHINA) COMPANY LTD. FILES APPLICATION FOR "TRIVALENT CHROMIUM SURFACE TREATMENT AGENT FOR ALUMINUM OR ALUMINUM ALLOY AND PREPARATION METHOD AND USE THEREOF"

GENEVA, May 18 -- CHEMETALL GMBH (Trakehner Str. 3, 60487 Frankfurt Am Main), BASF (CHINA) COMPANY LTD. (No. 300, Jiang Xin Sha RoadPudong New Area, Shanghai 200137) filed a patent application (PCT/CN2025/133767) for "TRIVALENT CHROMIUM SURFACE TREATMENT AGENT FOR ALUMINUM OR ALUMINUM ALLOY AND PREPARATION METHOD AND USE THEREOF" on Nov 10, 2025. With publication no. WO/2026/098673, the details related to the patent application was published on May 15, 2026.

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): SUN, Junyao (No. 628 Kang An RoadPudong New Area, Shanghai 201315), WAN, Shengxing (No. 628 K...