Qionghua YANG

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Guaghan, Deyang, Sichuan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Pipe racking system
- Patent number 11,286,731
- Issue date Mar 29, 2022
- Sichuan Honghua Petroleum Equipment Co., Ltd.
- Ying Li
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Drilling rig
- Patent number 11,028,651
- Issue date Jun 8, 2021
- SICHUAN HONGHUA PETROLEUM EQUIPMENT CO., LTD.
- Rui Luo
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
DRILLING RIG
- Publication number 20190316421
- Publication date Oct 17, 2019
- SICHUAN HONGHUA PETROLEUM EQUIPMENT CO., LTD.
- Rui LUO
- E21 - EARTH DRILLING MINING