Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6737775 | Power generating installation that compises a drive engine and a generator | Ernst Hatz | 2004-05-18 |
| 6710494 | Power generating installation that comprises a generator and a reciprocating internal combustion engine as drive | Ernst Hatz | 2004-03-23 |