Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7481044 | Method for operation of an internal combustion engine running on hydrogen | Michael Preis, Bernhard Staar, Juergen Ringler | 2009-01-27 |
| 6250073 | Exhaust system of an internal-combustion engine having a storage volume | Rainer Zimmer | 2001-06-26 |