Joerg Breitenfeld

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Celle, DE

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Patents Grantslast 30 patents

Information Patent Grant
Reverse circulation apparatus and methods of using same
- Patent number 9,022,146
- Issue date May 5, 2015
- Baker Hughes Incorporated
- Sven Krueger
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Reverse Circulation Apparatus and Methods of Using Same
- Publication number 20110203848
- Publication date Aug 25, 2011
- BAKER HUGHES INCORPORATED
- Sven Krueger
- E21 - EARTH DRILLING MINING