Daniel A. Shaffer

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Talala, OK, US

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Patents Grantslast 30 patents

Information Patent Grant
Auxiliary face seal for submersible well pump seal section
- Patent number 9,777,560
- Issue date Oct 3, 2017
- Baker Hughes Incorporated
- Steven K. Tetzlaff
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electrical submersible pump system connection adapter
- Patent number 8,419,390
- Issue date Apr 16, 2013
- Baker Hughes Incorporated
- Dan A. Merrill
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Auxiliary Face Seal for Submersible Well Pump Seal Section
- Publication number 20160145984
- Publication date May 26, 2016
- BAKER HUGHES INCORPORATED
- Steven K. Tetzlaff
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Electrical Submersible Pump System Connection Adapter
- Publication number 20100150751
- Publication date Jun 17, 2010
- BAKER HUGHES INCORPORATED
- Dan A. Merrill
- E21 - EARTH DRILLING MINING