Mei HAN

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Tangshan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Integrated composite overload injection system and working method t...
- Patent number 12,076,699
- Issue date Sep 3, 2024
- SHINDA (TANGSHAN) CREATIVE OIL & GAS EQUIPMENTCO., LTD.
- Haixuan Cheng
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
INTEGRATED COMPOSITE OVERLOAD INJECTION SYSTEM AND WORKING METHOD T...
- Publication number 20210324717
- Publication date Oct 21, 2021
- Shinda (Tangshan) Creative Oil & Gas Equipment Co., Ltd.
- Haixuan CHENG
- E21 - EARTH DRILLING MINING