Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6711894 | Internal combustion engine and method of operating same | Eberhard Holder, Roland Kemmler, Christoph Koehlen, Martin Matt | 2004-03-30 |
| 6691684 | Fuel fractionation device and method of making same | Eberhard Holder, Roland Kemmler, Martin Matt | 2004-02-17 |