Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5647336 | Device for introducing fuel into a combustion chamber of an internal combustion engine | Walter Piock, Gunter K. Fraidl | 1997-07-15 |
| 5642706 | Internal combustion engine with spark ignition | Walter Piock | 1997-07-01 |
| 5590635 | Device for introducing fuel into the combustion chamber of an internal combustion engine | Walter Piock, Gunter K. Fraidl | 1997-01-07 |