Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6048089 | Mixing apparatus for maintaining a pressure differential over varying feed rates | Michael Andrews | 2000-04-11 |
| 5885445 | Belt press for dewatering sludge | Michael Andrews | 1999-03-23 |