Karl-Heinz Berger

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Gelsenkirchen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for the mining of mineral matter, especially coal
- Patent number 5,110,187
- Issue date May 5, 1992
- Bochumer Eisenhutte Heintzmann GmbH & Co. KG
- Peter Heintzmann
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of monitoring and controlling mining operations
- Patent number 5,090,775
- Issue date Feb 25, 1992
- Bochumer Eisenhutte Heintzmann GmbH & Co. KG
- Karl-Heinz Berger
- E21 - EARTH DRILLING MINING
Information Patent Grant
Electrohydraulic coal-mining system
- Patent number 4,900,091
- Issue date Feb 13, 1990
- Bochumer Eisenhutte Heintzmann GmbH & Co. KG
- Gustav Neu
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of separating the upper coal in seams
- Patent number 4,798,417
- Issue date Jan 17, 1989
- Bochumer Eisenhutte Heintzmann GmbH & Co. HG
- Gunter Blumenthal
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of controlling hydraulically actuatable arrangement in under...
- Patent number 4,693,640
- Issue date Sep 15, 1987
- Bochumer Eisenhutte Heintzmann GmbH & Co. KG
- Karl-Heinz Berger
- E21 - EARTH DRILLING MINING