INTERNATIONAL PATENT: CNPC USA CORPORATION, BEIJING HUAMEI, INC., CHINA NATIONAL PETROLEUM CORPORATION FILES APPLICATION FOR "TOE FLAP VALVE FOR INTERNAL CORROSION PREVENTION IN CCUS INJECTION WELL TUBING"

GENEVA, Oct. 28 -- CNPC USA CORPORATION (2901 Wilcrest Dr, Suite 600,Houston, TX 77042), BEIJING HUAMEI, INC. (No. 23 Taiyanggong South St., Chao Yang District,Beijing, 102200), CHINA NATIONAL PETROLEUM CORPORATION (No. 9 Dongzhimen North St., Dongcheng Dist.,Beijing, 100007) filed a patent application (PCT/US2024/028167) for "TOE FLAP VALVE FOR INTERNAL CORROSION PREVENTION IN CCUS INJECTION WELL TUBING" on May 07, 2024. With publication no. WO/2025/221270, the details related to the patent application was published on Oct 23, 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): ZHAO, Lei (2901 ...