Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5965027 | Process for removing silica from wastewater | Stephen D. Allen | 1999-10-12 |
| 5910251 | Wastewater treatment process and apparatus for high flow fluoride removal | Stephen D. Allen | 1999-06-08 |
| 5904853 | Wastewater treatment process and apparatus for high flow silica removal | Stephen D. Allen | 1999-05-18 |
| 5871648 | Wastewater treatment process and apparatus for high flow impurity removal | Stephen D. Allen | 1999-02-16 |