Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4704204 | Installation for injecting oxygen into liquid media | — | 1987-11-03 |
| 4666611 | Sewage-aeration system, and method for the operation and use thereof | — | 1987-05-19 |
| 4465645 | Rotary surface aerator with adjustable liquid transporting units | — | 1984-08-14 |
| 4322377 | Surface aerating rotor | — | 1982-03-30 |
| 4244131 | Aiming device for a firearm | — | 1981-01-13 |
| 4204958 | Method and apparatus for treatment of sludge | — | 1980-05-27 |