Lei WANG

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Baoding, CN

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Patents Grantslast 30 patents

Information Patent Grant
Sliding sleeve
- Patent number 11,885,201
- Issue date Jan 30, 2024
- China Petroleum and Chemical Corporation
- Zhenwei Gan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve mechanism, engine and vehicle
- Patent number 11,448,105
- Issue date Sep 20, 2022
- Great Wall Motor Company Limited
- Tao Liu
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Grant
Tool for jet packing and fracturing and tubular column comprising same
- Patent number 11,142,989
- Issue date Oct 12, 2021
- China Petroleum and Chemical Corporation
- Zhenwei Gan
- E21 - EARTH DRILLING MINING
Information Patent Grant
Valve mechanism, engine and vehicle
- Patent number 10,815,837
- Issue date Oct 27, 2020
- Great Wall Motor Company Limited
- Tao Liu
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES

Patents Applicationslast 30 patents

Information Patent Application
NOVEL SLIDING SLEEVE
- Publication number 20210189833
- Publication date Jun 24, 2021
- China Petroleum and Chemical Corporation
- Zhenwei GAN
- E21 - EARTH DRILLING MINING
Information Patent Application
TOOL FOR JET PACKING AND FRACTURING AND TUBULAR COLUMN COMPRISING SAME
- Publication number 20210164318
- Publication date Jun 3, 2021
- China Petroleum and Chemical Corporation
- Zhenwei GAN
- E21 - EARTH DRILLING MINING
Information Patent Application
VALVE MECHANISM, ENGINE AND VEHICLE
- Publication number 20200165941
- Publication date May 28, 2020
- GREAT WALL MOTOR COMPANY LIMITED
- Tao LIU
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES
Information Patent Application
VALVE MECHANISM, ENGINE AND VEHICLE
- Publication number 20200141291
- Publication date May 7, 2020
- GREAT WALL MOTOR COMPANY LIMITED
- Tao LIU
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES