Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5107752 | Rotary gate valve for hydraulic servo-assisted steering systems | Dieter Elser, Walter Kogel | 1992-04-28 |
| 5086687 | Rotary slide valve for hydraulic auxiliary power steering | Dieter Elser, Walter Kogel | 1992-02-11 |
| 4848402 | Rotary slide valve for hydraulic auxiliary power steerings | Dieter Elser, Manfred Keller | 1989-07-18 |