Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5797420 | Proportioner | Paul E. Naslund | 1998-08-25 |
| 5518020 | Proportioner | Paul E. Naslund | 1996-05-21 |
| 5141016 | Divertor valve | — | 1992-08-25 |
| 5123449 | Selector valve | — | 1992-06-23 |
| 4934651 | Magnetically operated valve and timer assembly | — | 1990-06-19 |
| 4815634 | Vacuum actuated pump | — | 1989-03-28 |