Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11267735 | Circulation pump for vertically circulating water in bodies of water using consecutive expanding super air bubbles | John Kellgren | 2022-03-08 |
| 8017087 | Device for oxygenating ground water | — | 2011-09-13 |
| 6758959 | Method and apparatus for oxygenating ground water | — | 2004-07-06 |