Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7028992 | Aerator with intermediate bearing | — | 2006-04-18 |
| 5851443 | Aerator with dual path discharge | — | 1998-12-22 |
| 5183596 | Replaceable seal module for liquid aerators | Peter S. Gross, Eric G. Bollensen | 1993-02-02 |
| 5160667 | Bearing protection device for liquid aerators | Peter S. Gross, Eric G. Bollensen | 1992-11-03 |
| 4844843 | Waste water aerator having rotating compression blades | — | 1989-07-04 |
| 4409100 | Liquid aerating device | — | 1983-10-11 |