Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6805802 | De-watering process | Raymond T. Pettyjohn | 2004-10-19 |
| 6530343 | Control of ammonia and phosphorus in milking parlors | — | 2003-03-11 |
| 6468518 | Deliquescent salt addition to alum used to treat animal waste products | Joseph Hurd, Russell H. Barnes | 2002-10-22 |
| 5766485 | Color removal from effluent waters | David Kennedy | 1998-06-16 |
| 5573674 | Activated silica sol | Michael A. Ware | 1996-11-12 |