Yuhang Qi

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Chengdu City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Bullhead-shaped grooved diversion jet and empennage swing vibration...
- Patent number 11,242,715
- Issue date Feb 8, 2022
- Hongjun Zhu
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
BULLHEAD-SHAPED GROOVED DIVERSION JET AND EMPENNAGE SWING VIBRATION...
- Publication number 20210246734
- Publication date Aug 12, 2021
- SOUTHWEST PETROLEUM UNIVERSITY
- Hongjun Zhu
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL