Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6634573 | Water discharge device with a hose sliding in a curved pipe | Paul Boesch, Daniel Riesen | 2003-10-21 |
| 5399963 | Method and apparatus for calibration of an electricity meter | Roland Nussbaumer | 1995-03-21 |