Xinyi Gu

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Dongying, CN

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Patents Grantslast 30 patents

Information Patent Grant
Oil pumping unit with pinion reciprocating on rack
- Patent number 9,651,124
- Issue date May 16, 2017
- Xinyi Gu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Well rig lift system and a hydraulic energy-storing well rig lift s...
- Patent number 5,390,747
- Issue date Feb 21, 1995
- Drilling Technology Research Institute of Shengli Oilfield
- Xinyi Gu
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
OIL PUMPING UNIT WITH PINION RECIPROCATING ON RACK
- Publication number 20140238160
- Publication date Aug 28, 2014
- Xinyi Gu
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...