Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5660718 | Method and apparatus for separation by flotation | Michael Wenzel Chudacek, Stephen Henry Marshall | 1997-08-26 |
| 5078410 | Centrifugal seal | Anthony Grzina, Philip N. Mitchell, Denis J. Martin, deceased | 1992-01-07 |
| 4733825 | Centrifugal grinding mills | John M. Boyes, William Rayner | 1988-03-29 |