Karl Johannes Krollmann

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Augsburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Kelly bar arrangement
- Patent number 8,246,474
- Issue date Aug 21, 2012
- Bauer Maschinen GmbH
- Karl Johannes Krollmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Drilling implement and method for operating a drilling implement
- Patent number 8,002,048
- Issue date Aug 23, 2011
- Bauer Maschinen GmbH
- Matthias Saehn
- E21 - EARTH DRILLING MINING
Information Patent Grant
Earth drilling device
- Patent number 7,775,300
- Issue date Aug 17, 2010
- Bauer Maschinen GmbH
- Karl Johannes Krollmann
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
KELLY BAR ARRANGEMENT
- Publication number 20110105235
- Publication date May 5, 2011
- Bauer Maschinen GmbH
- Karl Johannes Krollmann
- E21 - EARTH DRILLING MINING
Information Patent Application
Drilling implement and method for operating a drilling implement
- Publication number 20090071674
- Publication date Mar 19, 2009
- Matthias Saehn
- E21 - EARTH DRILLING MINING
Information Patent Application
Earth drilling device
- Publication number 20080245571
- Publication date Oct 9, 2008
- Karl Johannes Krollmann
- E21 - EARTH DRILLING MINING