Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5400649 | Device for monitoring the pressure of a vehicle tire | Stefan Herzog, Helmut Ulrich, Gerhard Stegemann, deceased | 1995-03-28 |
| 5380073 | Dual circuit brake valve system | Gerhard Martini, Wolfgang D. Pohl, Jurgen Sandmann | 1995-01-10 |
| 5226315 | Device for surveillance of a gas-filled chamber to monitor leaks | Gerhard Stegemann, deceased, Gunther Singbartl, Helmut Ulrich | 1993-07-13 |
| 5181418 | Device for monitoring the pressure of a measurement chamber charged with the pressure of a vehicle tire | Gunther Singbartl, Erwin Petersen, Helmut Ulrich | 1993-01-26 |
| 5101754 | Device for surveillance of a pressure in a vehicle tire | Erwin Petersen, Erich Reinecke, Gunther Singbartl, Manfred Schniggenfittich, Gerhard Stegemann, deceased +1 more | 1992-04-07 |
| 4679865 | Relay valve device | Helmut Ulrich, Brian Shilton | 1987-07-14 |
| 4475773 | Steering-brake control arrangement for a vehicle brake system | Harald Meyer, Diether Staisch | 1984-10-09 |