Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7147783 | Method for reducing hydrogen sulfide emissions from wastewater | John R. Walton, Michael Fagan | 2006-12-12 |
| 6773604 | Method for reducing hydrogen sulfide emissions from wastewater | John R. Walton, Michael Fagan | 2004-08-10 |
| 6365099 | In situ gas scrubbing method and system for odor and corrosion control in wastewater collection systems | Harry M. Castrantas | 2002-04-02 |