Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7872479 | Leak testing and leak localization arrangement for leak testing and leak localization for flat roofs or the like | Markus Bruehl, Klaus Burger | 2011-01-18 |
| 7222887 | Fluid operated contractile drive | Stefan Schwarz | 2007-05-29 |
| 7185580 | Fluid-actuated contraction drive and associated contraction tube | Stefan Schwarz | 2007-03-06 |
| 6871500 | Gas operated contraction drive | Stefan Schwarz, Karl Birk | 2005-03-29 |
| 6840152 | Actuating means | Ansgar Kriwet | 2005-01-11 |
| 6360648 | Fluid operated rotary drive | Ansgar Kriwet, Dieter Bergemann, Axel Thallemer | 2002-03-26 |
| 6349746 | Actuating means | Dieter Bergemann, Axel Thallemer | 2002-02-26 |