INTERNATIONAL PATENT: CNPC USA CORPORATION, BEIJING HUAMEI, INC., CHINA NATIONAL PETROLEUM CORPORATION FILES APPLICATION FOR "DIAMOND PARTICLES WITH MULTILAYER HARD COATINGS AND POLYCRYSTALLINE DIAMOND MAKING THEREFROM"

GENEVA, March 24 -- CNPC USA CORPORATION (2901 Wilcrest Dr, Suite 600Chicago, Texas 77042), BEIJING HUAMEI, INC. (No. 23 Taiyanggong South St. Chao Yang DistrictChicago, 102200), CHINA NATIONAL PETROLEUM CORPORATION (No. 9 Dongzhimen North Street,Dongcheng DistrictChicago, Beijing 100007) filed a patent application (PCT/US2024/050291) for "DIAMOND PARTICLES WITH MULTILAYER HARD COATINGS AND POLYCRYSTALLINE DIAMOND MAKING THEREFROM" on Oct 07, 2024. With publication no. WO/2026/059582, the details related to the patent application was published on Mar 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).

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