Junlei YAO

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Yantai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Fracturing pump spacer frame
- Patent number 12,215,582
- Issue date Feb 4, 2025
- YANTAI JEREH OILFIELD SERVICES GROUP CO., LTD.
- Junlei Yao
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Crosshead Box and Plunger Pump
- Publication number 20250035107
- Publication date Jan 30, 2025
- YANTAI JEREH OILFIELD SERVICES GROUP CO., LTD.
- Junlei YAO
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Fracturing Pump Spacer Frame
- Publication number 20250034975
- Publication date Jan 30, 2025
- YANTAI JEREH OILFIELD SERVICES GROUP CO., LTD.
- Junlei YAO
- E21 - EARTH DRILLING MINING
Information Patent Application
Power End Housing for Plunger Pump and Plunger Pump Including Power...
- Publication number 20240175435
- Publication date May 30, 2024
- YANTAI JEREH OILFIELD SERVICES GROUP CO., LTD.
- Junlei YAO
- E21 - EARTH DRILLING MINING