YANG LI

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Huangshan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic rotary side-swing elevator
- Patent number 11,598,162
- Issue date Mar 7, 2023
- HUANGSHAN HUANENG PETROCHEMICAL MACHINERY CO., LTD.
- Kang Wang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Truck-mounted flipped automated operation equipment for well workover
- Patent number 11,519,229
- Issue date Dec 6, 2022
- HUANGSHAN HUANENG PETROCHEMICAL MACHINERY CO., LTD.
- Yongbin Li
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
HYDRAULIC ROTARY SIDE-SWING ELEVATOR
- Publication number 20220136342
- Publication date May 5, 2022
- Huangshan Huaneng Petrochemical Machinery Co., Ltd.
- KANG WANG
- E21 - EARTH DRILLING MINING