Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5607584 | Filter cells providing lifting means and related methods | Richard Leavitt, Donald Chanski, Ronald V. Repetti, Drew Willoughby | 1997-03-04 |
| 5482624 | Filter cells providing lifting means and related methods | Richard Leavitt, Donald Chanski, Ronald V. Repetti, Drew Willoughby | 1996-01-09 |