Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554996 | Wastewater treatment system | — | 2003-04-29 |
| 6224041 | Splash plate structure for aerators | John W. Struewing | 2001-05-01 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6554996 | Wastewater treatment system | — | 2003-04-29 |
| 6224041 | Splash plate structure for aerators | John W. Struewing | 2001-05-01 |