Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5851447 | Floor-mounted aeration system | — | 1998-12-22 |
| 5851448 | Single guide member retrievable aeration system | — | 1998-12-22 |
| 5690864 | Retrievable aeration system | — | 1997-11-25 |
| RE33899 | Fine bubble diffuser and diffuser system having filtered blow-down tube | — | 1992-04-28 |
| 4639314 | Fine bubble diffuser and diffuser system having filtered blow-down tube | — | 1987-01-27 |