Lian Chen

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Chengdu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Fixed cutting structure-composite cone drill bit
- Patent number 11,486,201
- Issue date Nov 1, 2022
- CHENGDU HAIRUI ENERGY TECHNOLOGY CO., LTD
- Yuchun Kuang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Rotating cutter single cone bit
- Patent number 10,961,784
- Issue date Mar 30, 2021
- Southwest Petroleum University
- Lian Chen
- E21 - EARTH DRILLING MINING
Information Patent Grant
Scraping-wheel drill bit
- Patent number 9,103,168
- Issue date Aug 11, 2015
- Southwest Petroleum University
- Ying Xin Yang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Composite drill bit
- Patent number 8,985,243
- Issue date Mar 24, 2015
- Southwest Petroleum University
- Ying Xin Yang
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
TORQUE-ADAPTIVE IMPACT TOOL SUITABLE FOR PDC BIT
- Publication number 20240175323
- Publication date May 30, 2024
- SOUTHWEST PETROLEUM UNIVERSITY
- Shiwei Niu
- E21 - EARTH DRILLING MINING
Information Patent Application
FIXED CUTTING STRUCTURE-COMPOSITE CONE DRILL BIT
- Publication number 20210108465
- Publication date Apr 15, 2021
- CHENGDU HAIRUI ENERGY TECHNOLOGY CO., LTD
- Yuchun KUANG
- E21 - EARTH DRILLING MINING
Information Patent Application
Rotating Cutter Single Cone Bit
- Publication number 20200217141
- Publication date Jul 9, 2020
- SOUTHWEST PETROLEUM UNIVERSITY
- Lian CHEN
- E21 - EARTH DRILLING MINING
Information Patent Application
SCRAPING-WHEEL DRILL BIT
- Publication number 20130126246
- Publication date May 23, 2013
- Ying Xin Yang
- E21 - EARTH DRILLING MINING
Information Patent Application
COMPOSITE DRILL BIT
- Publication number 20130126247
- Publication date May 23, 2013
- Ying Xin Yang
- E21 - EARTH DRILLING MINING