Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6890437 | Waste processing and recovery system | John W. Rickett | 2005-05-10 |
| 6663773 | Waste processing and recovery system | John W. Rickett | 2003-12-16 |
| 5606125 | Material level-interface control system | Steven Lyons | 1997-02-25 |