Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5078923 | Aeration apparatus having a deicing mechanism and control circuit therefor | Thomas Giese, John White | 1992-01-07 |
| 4954295 | Propeller aerator with peripheral injection of fluid and method of using the aerator | — | 1990-09-04 |
| 4882099 | Aeration apparatus havine a deicing mechanism and control circuit therefor | Thomas Giese | 1989-11-21 |
| 4806251 | Oscillating propeller type aerator apparatus and method | — | 1989-02-21 |