Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6551818 | Biological filter structures | William C. Stewart, Randall R. Thom | 2003-04-22 |
| 6524849 | Biological filter structures | Baron V. Adams, Charles S. Swift | 2003-02-25 |
| 6479276 | Biological filter apparatus | Randall R. Thom, Charles S. Swift, James T. Boswell, William C. Stewart | 2002-11-12 |