Songbo Gou

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Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Surface motor direct-drive sucker-rod screw pump device
- Patent number 9,059,606
- Issue date Jun 16, 2015
- Millennium Oiflow Systems & Technology Inc.
- Jun Liu
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Surface motor direct-drive sucker-rod screw pump device
- Patent number 8,702,400
- Issue date Apr 22, 2014
- Millennium Oilflow systems & Technology Inc.
- Jun Liu
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
SURFACE MOTOR DIRECT-DRIVE SUCKER-ROD SCREW PUMP DEVICE
- Publication number 20140197767
- Publication date Jul 17, 2014
- Millennium Oilflow Systems & Technology Inc.
- Jun Liu
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Surface Motor Direct-Drive Sucker-Rod Screw Pump Device
- Publication number 20100098563
- Publication date Apr 22, 2010
- Jun Liu
- E21 - EARTH DRILLING MINING