Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4303901 | Electromagnetic fuel control element | Gerold Grimm | 1981-12-01 |
| 4295797 | Fuel supply pump | Karl Ruhl | 1981-10-20 |
| 4256579 | Filter for liquids | Klaus Rose, Peter Ringwald | 1981-03-17 |
| 4231718 | Fluid pump, particularly a fuel supply pump | Karl Ruhl | 1980-11-04 |
| 4205947 | Method and apparatus for the ventilation of a fuel supply pump | Karl Ruhl | 1980-06-03 |