Friedrich-Wilhelm Dannehl

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Hagen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Hydraulic shield support
- Patent number 7,237,983
- Issue date Jul 3, 2007
- DBT GmbH
- Franz-Heinrich Suilmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Lift cylinder assembly
- Patent number 6,991,407
- Issue date Jan 31, 2006
- DBT GmbH
- Friedrich Wilhelm Dannehl
- E21 - EARTH DRILLING MINING
Information Patent Grant
Hydraulic cylinder
- Patent number 6,615,705
- Issue date Sep 9, 2003
- DBT GmbH
- Werner Reinelt
- F15 - FLUID-PRESSURE ACTUATORS HYDRAULICS OR PNEUMATICS IN GENERAL
Information Patent Grant
Hydraulic double telescopic prop
- Patent number 6,209,440
- Issue date Apr 3, 2001
- DBT Deutsche Bergbau-Technik GmbH
- Friedrich Wilhelm Dannehl
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
ADVANCING ASSEMBLY AND POWERED SHIELD SUPPORT HEREWITH
- Publication number 20120180467
- Publication date Jul 19, 2012
- BUCYRUS EUROPE GMBH
- Friedrich Wilhelm Dannehl
- E21 - EARTH DRILLING MINING
Information Patent Application
Supply line
- Publication number 20070131105
- Publication date Jun 14, 2007
- Friedrich Wilhelm Dannehl
- E21 - EARTH DRILLING MINING
Information Patent Application
Hydraulic shield support
- Publication number 20040258487
- Publication date Dec 23, 2004
- DBT GmbH
- Franz-Heinrich Suilmann
- E21 - EARTH DRILLING MINING
Information Patent Application
Lift cylinder assembly
- Publication number 20040244999
- Publication date Dec 9, 2004
- DBT GmbH
- Friedrich Wilhelm Dannehl
- E21 - EARTH DRILLING MINING
Information Patent Application
Hydraulic cylinder
- Publication number 20020046650
- Publication date Apr 25, 2002
- Werner Reinelt
- E21 - EARTH DRILLING MINING