Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5372571 | Centrifugal separator with water jacket and bottom discharge | Benjamin V. Knelson | 1994-12-13 |
| 5222933 | Centrifual discharge of concentrate | Benjamin V. Knelson | 1993-06-29 |