Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9463835 | Bicycle dynamo | — | 2016-10-11 |
| 9242698 | Electric drive for bicycles | — | 2016-01-26 |
| 5044895 | Oil supply device for a rotary machine | Heinz Frings, Karl-Heinz Ronthaler | 1991-09-03 |
| 4632650 | Vacuum pump having an evacuated gear chamber | Hans-Peter Kabelitz, Karl-Heinz Ronthaler, Jorg Thielicke | 1986-12-30 |
| 4525129 | Oil-sealed vacuum pump | Hanns-Peter Berges, Wolfgang Leier | 1985-06-25 |
| 4483667 | Vacuum pump and method of operating the same | Hanns-Peter Berges, Hans-Peter Kabelitz | 1984-11-20 |