Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5265947 | Circuit configuration for a brake system having an anti-lock control | Hans Wupper, Helmut Fennel, Gunther Buschmann, Norbert Ehmer, Robert Kyle Schmidt | 1993-11-30 |
| 4975852 | Circuit configuration for controlling the auxiliary energy supply system of a brake system with anti-lock control and/or traction slip control | Helmut Fennel | 1990-12-04 |
| 4930845 | Process and circuit configuration for controlling a brake system with sequential brake pressure modulation | Hans-Wilhelm Bleckmann, Helmut Fennel, Johannes Graeber, Otto Determann | 1990-06-05 |
| 4824182 | Anti-lock hydraulic brake system for automotive vehicles | Helmut Steffes, Norbert Ocvirk, Gunther Buschmann, Anton David, Johannes Graeber +1 more | 1989-04-25 |
| 4688858 | Slip-controlled brake system for motor vehicles | Helmut Fennel, Otto Determann | 1987-08-25 |
| 4657313 | Slip-controlled brake system for road vehicles | Helmut Fennel | 1987-04-14 |
| 4643492 | Brake system with slip control for automotive vehicles with front-wheel drive or all-wheel drive | Juan Belart, Helmut Fennel, Wolfram Seibert | 1987-02-17 |
| 4632467 | Brake system with brake slip control | Dieter Kircher | 1986-12-30 |
| 4626043 | Slip-controlled brake system for automotive vehicles with a driven axle | Juan Belart, Helmut Fennel, Wolfram Seibert | 1986-12-02 |