Zimpfer; Michael
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zimpfer; Michael.The latest application filed is for "pressure-dependent check valve and hydraulic system equipped therewith".
- Zimpfer; Michael - Ettlingen DE
| Patent | Date |
|---|---|
| Pressure-dependent check valve and hydraulic system equipped therewith Grant 7,617,841 - Zimpfer , et al. November 17, 2 | 2009-11-17 |
| Hydraulic system comprising pressure-controlled damping means Grant 7,219,494 - Zimpfer May 22, 2 | 2007-05-22 |
| Pressure-dependent check valve and hydraulic system equipped therewith App 20070056633 - Zimpfer; Michael ; et al. | 2007-03-15 |
| Damper for hydraulic systems Grant 7,017,610 - Zimpfer , et al. March 28, 2 | 2006-03-28 |
| Hydraulic system comprising pressure-controlled damping means App 20050172620 - Zimpfer, Michael | 2005-08-11 |
| Damper for hydraulic systems App 20050173852 - Zimpfer, Michael ; et al. | 2005-08-11 |
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