Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6979148 | Golf course green storm water filter | Thomas H. Happel | 2005-12-27 |
| 6869525 | Storm drain filter system | — | 2005-03-22 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6979148 | Golf course green storm water filter | Thomas H. Happel | 2005-12-27 |
| 6869525 | Storm drain filter system | — | 2005-03-22 |