Wirth Maschinen-und Bohrgerate-Fabrik GmbH
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wirth Maschinen-und Bohrgerate-Fabrik GmbH.The latest application filed is for "device for advancing drillings in the ground".
- Wirth Maschinen-und Bohrgerate-Fabrik GmbH - Erkelenz DE
- Wirth Maschinen-und Bohrgerate-Fabrik GmbH - New York NY
| Patent | Date |
|---|---|
| Device for advancing drillings in the ground Grant 7,658,244 - Mohrmann February 9, 2 | 2010-02-09 |
| Device for drilling a bore in the ground Grant 7,562,726 - Tibussek , et al. July 21, 2 | 2009-07-21 |
| Draw works Grant 7,232,113 - Heinrichs , et al. June 19, 2 | 2007-06-19 |
| Tunnel-boring machine and method of using the same Grant 6,431,653 - Kleuters August 13, 2 | 2002-08-13 |
| Drilling tool for the air-lifting process Grant 6,405,812 - Tibussek June 18, 2 | 2002-06-18 |
| Process and device for separation of pipes or columns fixed in the ground Grant 6,183,165 - Heinrichs , et al. February 6, 2 | 2001-02-06 |
| Automatic control system and method for a machine used for excavating drifts, tunnels, stopes, or caverns Grant 5,938,288 - Saint-Pierre , et al. August 17, 1 | 1999-08-17 |
| Apparatus for clamping to the end of a pipe Grant 4,773,689 - Wolters September 27, 1 | 1988-09-27 |
| Manipulator for cover closure members Grant 4,655,362 - Ecker , et al. April 7, 1 | 1987-04-07 |
| Method for treating the effects of alcohol Grant 4,565,689 - Revici January 21, 1 | 1986-01-21 |
| Method for sinking boreholes Grant 4,548,282 - Hurtz , et al. October 22, 1 | 1985-10-22 |
| Holding device for boring head tools or the like Grant 4,454,923 - Tibussek June 19, 1 | 1984-06-19 |
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