von Holzen; Richard
Patent Applications and Registrations
Patent applications and USPTO patent grants for von Holzen; Richard.The latest application filed is for "hydraulic elevator without machine room".
- von Holzen; Richard - Menzingen CH
| Patent | Date |
|---|---|
| Hydraulic elevator without machine room Grant 7,946,391 - von Holzen May 24, 2 | 2011-05-24 |
| Hydraulic Elevator Without Machine Room App 20090114482 - von Holzen; Richard | 2009-05-07 |
| Hydraulic elevator with valve for preventing discharge of pressure accumulator and method of controlling same Grant 7,134,528 - Birbaumer , et al. November 14, 2 | 2006-11-14 |
| Hydraulic elevator with motor controlled hydraulic drive and method for controlling the hydraulic elevator Grant 6,971,481 - Moser , et al. December 6, 2 | 2005-12-06 |
| Hydraulic elevator with a pressure accumulator and method for controlling and adjusting said elevator App 20040173412 - Birbaumer, Hugo ; et al. | 2004-09-09 |
| Hydraulic lift comprising a pressure accumulator and method for controlling and regulating one such lift App 20040074702 - Moser, Daniel ; et al. | 2004-04-22 |
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