Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6693849 | Piezoelectric audio transducer | Peter Eberl, Rolf Eberl | 2004-02-17 |
| 5932842 | Strength member for combined fluid/electrical hose | Rolf Eberl, Peter Eberl | 1999-08-03 |
| 5117403 | Above and below water sound transducer | Rolf Eberl | 1992-05-26 |