Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6139744 | Waste treatment device and method employing the same | David R. Spears, Christina Edvardsson, D. Glen Raiger | 2000-10-31 |
| 6048452 | Waste treatment device and method employing the same | Judie Forbes, Jack P. Slovak, Robert A. Slovak, David R. Spears, Christina Edvardsson +1 more | 2000-04-11 |
| 5958252 | Waste treatment device and method employing the same | — | 1999-09-28 |