Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7754072 | Water feature construction | David R. Kelly | 2010-07-13 |
| 7144501 | Skimmer construction | David R. Kelly | 2006-12-05 |
| 7114668 | Constructed wetlands system, treatment apparatus and method | — | 2006-10-03 |
| 6740232 | Constructed wetlands system, treatment apparatus and method | — | 2004-05-25 |