Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5766491 | Backflow prevention system for media bed reactor | Peter J. Petit, Robert Hines | 1998-06-16 |
| 5552052 | Method of reducing iron fouling in groundwater treatment systems | Robert Hines | 1996-09-03 |
| 5538635 | Method for dissolving gas in liquid including pressurized bubble contactor in sidestream | Peter J. Petit, Richard E. Speece | 1996-07-23 |
| 5454938 | Bed height sensing device for biological reactor | Michael L. Doyle, Peter J. Petit | 1995-10-03 |
| 5411660 | Apparatus for dissolving gas in liquid including pressurized bubble contactor in sidestream | Peter J. Petit, Richard E. Speece | 1995-05-02 |