INTERNATIONAL PATENT: CNPC USA CORPORATION, BEIJING HUAMEI, INC., CHINA NATIONAL PETROLEUM CORPORATION FILES APPLICATION FOR "EXPANDABLE SPIRAL THREADED APPARATUS AND METHOD FOR ANCHORING A DOWNHOLE TOOL TO A CASING AND METHOD FOR ASSEMBLING THE APPARATUS"

GENEVA, June 11 -- 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 StreetDongcheng DistrictBeijing, 100007) filed a patent application (PCT/US2023/084410) for "EXPANDABLE SPIRAL THREADED APPARATUS AND METHOD FOR ANCHORING A DOWNHOLE TOOL TO A CASING, AND METHOD FOR ASSEMBLING THE APPARATUS" on Dec 15, 2023. With publication no. WO/2025/116922, the details related to the patent application was published on Jun 05, 2025.

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