Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073262 | Multi-purpose rotating membrane filter | Joseph F. Long | 1991-12-17 |
| 4925557 | Multi-purpose rotating membrane filter | Joseph F. Long | 1990-05-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5073262 | Multi-purpose rotating membrane filter | Joseph F. Long | 1991-12-17 |
| 4925557 | Multi-purpose rotating membrane filter | Joseph F. Long | 1990-05-15 |