Wenjie Deng

Follow

Person

Yantai, CN

People

Patents Grantslast 30 patents

Information Patent Grant
Valve spring fixing device and plunger pump
- Patent number 12,085,073
- Issue date Sep 10, 2024
- Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Wenjie Deng
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Valve spring seat sleeve, valve assembly and plunger pump
- Patent number 11,519,405
- Issue date Dec 6, 2022
- Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Wenjie Deng
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
High-low pressure lubrication system for high-horsepower plunger pump
- Patent number 10,859,203
- Issue date Dec 8, 2020
- American Jereh International Corporation
- Haiping Cui
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
VALVE SPRING FIXING DEVICE AND PLUNGER PUMP
- Publication number 20230017968
- Publication date Jan 19, 2023
- YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.
- Wenjie DENG
- E21 - EARTH DRILLING MINING
Information Patent Application
VALVE SPRING SEAT SLEEVE, VALVE ASSEMBLY AND PLUNGER PUMP
- Publication number 20220341415
- Publication date Oct 27, 2022
- YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO., LTD.
- Wenjie DENG
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...