Tongjian Niu

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Zhengzhou, CN

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Patents Grantslast 30 patents

Information Patent Grant
Polycrystalline diamond compact
- Patent number 11,873,684
- Issue date Jan 16, 2024
- SF DIAMOND CO., LTD.
- Dongpeng Zhao
- E21 - EARTH DRILLING MINING
Information Patent Grant
Polycrystalline diamond compact
- Patent number 11,377,910
- Issue date Jul 5, 2022
- SF DIAMOND CO., LTD.
- Dongpeng Zhao
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
POLYCRYSTALLINE DIAMOND COMPACT
- Publication number 20210164296
- Publication date Jun 3, 2021
- SF DIAMOND CO., LTD.
- Dongpeng ZHAO
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD FOR MAKING POLYCRYSTALLINE DIAMOND COMPACTS HAVING CURVED SU...
- Publication number 20200087758
- Publication date Mar 19, 2020
- SF DIAMOND CO., LTD.
- Dongpeng ZHAO
- B22 - CASTING POWDER METALLURGY
Information Patent Application
POLYCRYSTALLINE DIAMOND COMPACT
- Publication number 20190368276
- Publication date Dec 5, 2019
- SF DIAMOND CO., LTD.
- Dongpeng ZHAO
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
POLYCRYSTALLINE DIAMOND COMPACT
- Publication number 20190368277
- Publication date Dec 5, 2019
- SF DIAMOND CO., LTD.
- Dongpeng ZHAO
- B24 - GRINDING POLISHING
Information Patent Application
POLYCRYSTALLINE DIAMOND COMPACT
- Publication number 20190203539
- Publication date Jul 4, 2019
- SF DIAMOND CO., LTD.
- Dongpeng ZHAO
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD FOR PROCESSING POLYCRYSTALLINE DIAMOND COMPACT HAVING CURVED...
- Publication number 20180318962
- Publication date Nov 8, 2018
- SF DIAMOND CO., LTD.
- Dongpeng Zhao
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR