Lanhui MAO

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Chengdu City, CN

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Patents Grantslast 30 patents

Information Patent Grant
High-frequency composite impactor
- Patent number 11,927,077
- Issue date Mar 12, 2024
- SOUTHWEST PETROLEUM UNIVERSITY
- Jialin Tian
- E21 - EARTH DRILLING MINING
Information Patent Grant
Fracking tool with electromagnetic intelligent control sliding sleeve
- Patent number 11,828,149
- Issue date Nov 28, 2023
- SOUTHWEST PETROLEUM UNIVERSITY
- Jialin Tian
- E21 - EARTH DRILLING MINING
Information Patent Grant
Downhole signal receiving and transmitting device
- Patent number 11,788,407
- Issue date Oct 17, 2023
- SOUTHWEST PETROLEUM UNIVERSITY
- Jialin Tian
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Directional Well Hydraulic Clutch Drill String Full Rotation Contro...
- Publication number 20250116159
- Publication date Apr 10, 2025
- SOUTHWEST PETROLEUM UNIVERSITY
- Jialin TIAN
- E21 - EARTH DRILLING MINING
Information Patent Application
High-Frequency Composite Impactor
- Publication number 20240052705
- Publication date Feb 15, 2024
- SOUTHWEST PETROLEUM UNIVERSITY
- Jialin TIAN
- E21 - EARTH DRILLING MINING
Information Patent Application
Downhole Signal Receiving and Transmitting Device
- Publication number 20220364462
- Publication date Nov 17, 2022
- SOUTHWEST PETROLEUM UNIVERSITY
- Jialin TIAN
- H01 - BASIC ELECTRIC ELEMENTS