Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7985298 | Wash/rinse system for a drawer-type dishwasher | Dennis J. Purtilo, Thomas J. Wuestefeld | 2011-07-26 |
| 7695571 | Wash/rinse system for a drawer-type dishwasher | Dennis J. Purtilo, Thomas J. Wuestefeld | 2010-04-13 |