Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5766484 | Dissolved gas floatation device | Peter J. Petit, Charles S. Applegate | 1998-06-16 |
| 5593589 | Clarifier | — | 1997-01-14 |
| 5470475 | Clarifier | — | 1995-11-28 |
| 4555340 | Excess overflow orifice tubes | — | 1985-11-26 |