Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5489378 | Differential relief mechanism for a traveling water screen | Robert R. Cheesman, James C. VanRoo, Ronald L. Sinclair | 1996-02-06 |
| 5419832 | Guide lock for a traveling water screen | Ronald L. Sinclair | 1995-05-30 |