Demin Chen

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Convex ridge type non-planar cutting tooth and diamond drill bit
- Patent number 10,563,464
- Issue date Feb 18, 2020
- CNPC USA Corporation
- Javier Davila
- E21 - EARTH DRILLING MINING
Information Patent Grant
Convex ridge type non-planar cutting tooth and diamond drill bit
- Patent number 10,125,552
- Issue date Nov 13, 2018
- CNPC USA Corporation
- Liang Zhao
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Polycrystalline diamond compact cutter with improved geometry for c...
- Publication number 20200181985
- Publication date Jun 11, 2020
- CNPC USA CORPORATION
- Javier DAVILA
- E21 - EARTH DRILLING MINING
Information Patent Application
CONVEX RIDGE TYPE NON-PLANAR CUTTING TOOTH AND DIAMOND DRILL BIT
- Publication number 20190040689
- Publication date Feb 7, 2019
- CNPC USA CORPORATION
- Zhao Liang
- E21 - EARTH DRILLING MINING
Information Patent Application
CONVEX RIDGE TYPE NON-PLANAR CUTTING TOOTH AND DIAMOND DRILL BIT
- Publication number 20170058615
- Publication date Mar 2, 2017
- CNPC USA CORPORATION
- Zhao Liang
- E21 - EARTH DRILLING MINING