Hao Yu

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Chengdu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Wear-resistant and collision-resistant polycrystalline diamond comp...
- Patent number 12,196,042
- Issue date Jan 14, 2025
- SOUTHWEST PETROLEUM UNIVERSITY
- Tiejun Lin
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method for calculating safe drilling fluid density in fractured for...
- Patent number 11,822,046
- Issue date Nov 21, 2023
- SOUTHWEST PETROLEUM UNIVERSITY
- Xiangchao Shi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Remote-controlled adjustable-speed screw drill for gas-drive hydrau...
- Patent number 9,850,716
- Issue date Dec 26, 2017
- Southwest Petroleum University
- Tiejun Lin
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Novel Wear-Resistant and Collision-Resistant Polycrystalline Diamon...
- Publication number 20250003294
- Publication date Jan 2, 2025
- SOUTHWEST PETROLEUM UNIVERSITY
- Tiejun LIN
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD FOR CALCULATING SAFE DRILLING FLUID DENSITY IN FRACTURED FOR...
- Publication number 20230280493
- Publication date Sep 7, 2023
- SOUTHWEST PETROLEUM UNIVERSITY
- Xiangchao Shi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Capsule-type expansion body based on geothermal heating, and method...
- Publication number 20200157404
- Publication date May 21, 2020
- SOUTHWESTERN PETROLEUM UNIVERSITY
- Tiejun Lin
- E21 - EARTH DRILLING MINING
Information Patent Application
Remote-controlled adjustable-speed screw drill for gas-drive hydrau...
- Publication number 20160245063
- Publication date Aug 25, 2016
- Southwest Petroleum University
- Tiejun Lin
- E21 - EARTH DRILLING MINING