Wulfing; Gerhard
Patent Applications and Registrations
Patent applications and USPTO patent grants for Wulfing; Gerhard.The latest application filed is for "control device for an extracting unit in the work face of a mine".
- Wulfing; Gerhard - Velbert N/A DE
| Patent | Date |
|---|---|
| Hydraulic circuit for longwall mining Grant 8,960,807 - Weigel , et al. February 24, 2 | 2015-02-24 |
| Hydraulic circuit for longwall support Grant 8,876,218 - Weigel , et al. November 4, 2 | 2014-11-04 |
| Control device for an extracting unit in the work face of a mine Grant 8,726,937 - Wulfing May 20, 2 | 2014-05-20 |
| Control Device For An Extracting Unit In The Work Face Of A Mine App 20130048093 - Wulfing; Gerhard | 2013-02-28 |
| Hydraulic Circuit For Longwall Support App 20120170981 - Weigel; Wilfried ; et al. | 2012-07-05 |
| Hydraulic Circuit For Longwall Mining App 20120104829 - Weigel; Wilfried ; et al. | 2012-05-03 |
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