Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6752171 | Control-valve drive with sensor unit for detecting the position of the valve | Stefan Kolbenschlag, Walter Schneider | 2004-06-22 |
| 6294732 | Field device of the pressure-resistant encapsulation type of protection | Heinfried Hoffmann | 2001-09-25 |
| 6295511 | Apparatus for controlling and monitoring actuators with an open/close characteristic | — | 2001-09-25 |
| 6119515 | Method and apparatus for monitoring actuators | Peter Opl | 2000-09-19 |
| 6050296 | Control apparatus | Heinfried Hoffmann, Joerg Kiesbauer | 2000-04-18 |
| 5699824 | Electrical-pneumatic system | Stefan Kolbenschlag | 1997-12-23 |
| 5452742 | Electropneumatic position controller | Fausto Crespo Vidal, Heinfried Hoffmann | 1995-09-26 |
| 5404744 | Position controller | Heinfried Hoffmann, Bernd Mann | 1995-04-11 |
| 4925498 | Pneumatic control valve | — | 1990-05-15 |
| 4922952 | Pneumatic control valve | — | 1990-05-08 |
| 4794841 | Pneumatic drive mechanism for positioning apparatus | Norbert Jeschke | 1989-01-03 |
| 4730502 | Apparatus for transferring mechanical motions representing measured quantities | — | 1988-03-15 |
| 4402335 | Damping unit for measuring and automatic control systems | — | 1983-09-06 |
| 4343224 | Automatic control system | — | 1982-08-10 |