Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5599452 | Wastewater treatment method | David S. MacLaren | 1997-02-04 |
| 5484524 | Wastewater treatment apparatus | David S. MacLaren | 1996-01-16 |
| 5458788 | Plastic media filter | — | 1995-10-17 |
| 5449453 | Plastic media filter | — | 1995-09-12 |
| 5405540 | Chlorination and dechlorination method | — | 1995-04-11 |
| 5395625 | Fluid treatment tablet | — | 1995-03-07 |
| 5350505 | Plastic media filter | — | 1994-09-27 |
| 5350512 | Chlorination and dechlorination apparatus and method | — | 1994-09-27 |
| 5316668 | Wastewater treatment plant and apparatus | — | 1994-05-31 |