Liersch; Ralph
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liersch; Ralph.The latest application filed is for "rechargeable battery pack and electrical hand tool device".
- Liersch; Ralph - Metzingen N/A DE
| Patent | Date |
|---|---|
| Rechargeable battery pack and electrical hand tool device Grant 9,385,401 - Liersch , et al. July 5, 2 | 2016-07-05 |
| Rechargeable Battery Pack and Electrical Hand Tool Device App 20140162089 - Liersch; Ralph ; et al. | 2014-06-12 |
| Rechargeable battery pack and electrical hand tool device Grant 8,663,834 - Liersch , et al. March 4, 2 | 2014-03-04 |
| Rapid locking device Grant 7,789,737 - Liersch September 7, 2 | 2010-09-07 |
| Rechargeable Battery Pack and Electrical Hand Tool Device App 20090117452 - Wiesner; Bernd ; et al. | 2009-05-07 |
| Rapid Locking Device App 20080305727 - Liersch; Ralph | 2008-12-11 |
| Rechargeable Battery Pack and Electrical Hand Tool Device App 20080254356 - Liersch; Ralph ; et al. | 2008-10-16 |
| Tensioning nut to secure a disk-shaped tool Grant 6,808,347 - Liersch October 26, 2 | 2004-10-26 |
| Tensioning nut to secure a disk-shaped tool App 20030152443 - Liersch, Ralph | 2003-08-14 |
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