Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8382982 | Apparatus merging wetland plants with a floating substrate to treat pollution in any river, lake or body of water | — | 2013-02-26 |
| 5451119 | Method and apparatus for adjusting the height and slope of a manhole frame and cover | — | 1995-09-19 |
| 5337516 | Treatment of polluted water using wetland plants in a floating habitat | — | 1994-08-16 |
| 4880533 | Apparatus and system for treating waste water and sludge | — | 1989-11-14 |