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Patents Grants
last 30 patents
Information
Patent Grant
Device for advancing drillings in the ground
Patent number
7,658,244
Issue date
Feb 9, 2010
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Michael Mohrmann
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for drilling a bore in the ground
Patent number
7,562,726
Issue date
Jul 21, 2009
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Fritz Tibussek
E21 - EARTH DRILLING MINING
Information
Patent Grant
Draw works
Patent number
7,232,113
Issue date
Jun 19, 2007
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Peter Heinrichs
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Tunnel-boring machine and method of using the same
Patent number
6,431,653
Issue date
Aug 13, 2002
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Nikolaus Kleuters
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling tool for the air-lifting process
Patent number
6,405,812
Issue date
Jun 18, 2002
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Fritz Tibussek
E21 - EARTH DRILLING MINING
Information
Patent Grant
Process and device for separation of pipes or columns fixed in the...
Patent number
6,183,165
Issue date
Feb 6, 2001
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Peter Heinrichs
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for drilling a bore hole in the ground
Patent number
6,102,139
Issue date
Aug 15, 2000
Wirth Maschinen- und Bohrgerate-Fabrik GmbH
Fritz Tibussek
E21 - EARTH DRILLING MINING
Information
Patent Grant
Automatic control system and method for a machine used for excavati...
Patent number
5,938,288
Issue date
Aug 17, 1999
HDRK Mining Research Limited
Jacques Andre Saint-Pierre
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and machine for excavating drifts, tunnels, stopes, caverns...
Patent number
5,340,199
Issue date
Aug 23, 1994
HDRK Mining Research Limited
Wilfried Piefenbrink
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for clamping to the end of a pipe
Patent number
4,773,689
Issue date
Sep 27, 1988
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Jakob Wolters
E21 - EARTH DRILLING MINING
Information
Patent Grant
Device for connecting a drill column to a pipe or the like
Patent number
4,750,770
Issue date
Jun 14, 1988
Wirth Maschinen-und Bohrgerate-Fabrik
Fritz Tibussek
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for securing screw bolts against rotation
Patent number
4,739,680
Issue date
Apr 26, 1988
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Karl-Heinz Ecker
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Method and apparatus for modifying the cross-sectional profile of a...
Patent number
4,696,600
Issue date
Sep 29, 1987
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Georg Hurtz
E21 - EARTH DRILLING MINING
Information
Patent Grant
Manipulator for cover closure members
Patent number
4,655,362
Issue date
Apr 7, 1987
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Karl-Heinz Ecker
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Tool member for a rotary drilling tool
Patent number
4,637,659
Issue date
Jan 20, 1987
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Fritz Tibussek
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for sinking boreholes
Patent number
4,548,282
Issue date
Oct 22, 1985
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Georg Hurtz
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for producing an upwardly directed drill hole
Patent number
4,474,253
Issue date
Oct 2, 1984
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Nikolaus Kleuters
E21 - EARTH DRILLING MINING
Information
Patent Grant
Holding device for boring head tools or the like
Patent number
4,454,923
Issue date
Jun 19, 1984
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Fritz Tibussek
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for producing a drill hole
Patent number
4,396,072
Issue date
Aug 2, 1983
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Georg Hurtz
E21 - EARTH DRILLING MINING
Information
Patent Grant
Apparatus for interchangeable mounting of rollers, particularly in...
Patent number
4,321,815
Issue date
Mar 30, 1982
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Karl-Heinz Ecker
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Roller block, in particular for a roller straightening machine
Patent number
4,307,596
Issue date
Dec 29, 1981
Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Karl-Heinz Ecker
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Apparatus for extracting cores
Patent number
4,279,315
Issue date
Jul 21, 1981
Wirth Maschinen- und Bohrgerate-Fabrik GmbH
Fritz Tibussek
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method and apparatus for sinking shafts
Patent number
4,227,583
Issue date
Oct 14, 1980
Wirth Maschinen-und Bohrgerate-Fabrik
Joseph R. Benjamin
E21 - EARTH DRILLING MINING
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Trademark
last 30 trademarks
Information
Trademark
79031224 - WIRTH
Serial number
79031224
Registration number
3440886
Filing date
Jul 5, 2005
Wirth Maschinen- und; Bohrgeräte-FabrikGmbH
7 - Machines and machine tools