INTERNATIONAL PATENT: CNPC USA CORP., BEIJING HUAMEI, INC., CHINA NATIONAL PETROLEUM CORPORATION FILES APPLICATION FOR "A HIGH RESILIENCE, LOW COMPRESSION SET, ABRASION RESISTANT HYDROGENATED NITRILE BUTADIENE RUBBER (HNBR) COMPOUND FOR HIGH TEMPERATURE HIGH PRESSURE O&G APPLICATIONS"

GENEVA, June 11 -- CNPC USA CORP. (2901 Wilcrest Dr, Suite 600Houston, TX 77042), BEIJING HUAMEI, INC. (No. 23 Taiyanggong South St.Chao Yang DistrictBeijing, 102200), CHINA NATIONAL PETROLEUM CORPORATION (No. 9 Dongzhimen North St.Dongcheng Dist.Beijing, 100007) filed a patent application (PCT/US2024/014032) for "A HIGH RESILIENCE, LOW COMPRESSION SET, ABRASION RESISTANT HYDROGENATED NITRILE BUTADIENE RUBBER (HNBR) COMPOUND FOR HIGH TEMPERATURE HIGH PRESSURE O&G APPLICATIONS" on Feb 01, 2024. With publication no. WO/2025/116943, 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 ...