INTERNATIONAL PATENT: CNPC USA CORPORATION, BEIJING HUAMEI, INC., CHINA NATIONAL PETROLEUM CORPORATION FILES APPLICATION FOR "HYDRAULIC CONTROL APPARATUS AND METHOD FOR A DOWNHOLE TOOL"

GENEVA, Feb. 24 -- CNPC USA CORPORATION (2901 Wilcrest Drive, 6th FloorHouston, TX 77042), BEIJING HUAMEI, INC. (No. 23 Taiyanggong South St. Chao Yang DistrictBeijing, 100007), CHINA NATIONAL PETROLEUM CORPORATION (No. 9 Dongzhimen North Street, Dongcheng DistrictBeijing, 100007) filed a patent application (PCT/US2024/050175) for "HYDRAULIC CONTROL APPARATUS AND METHOD FOR A DOWNHOLE TOOL" on Oct 07, 2024. With publication no. WO/2026/039055, 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 Property Organization (WIPO).

Inventor(s): WANG, Jinjun (2901 Wilcrest Dri...