Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5084176 | Vibrating filter | Scott J. Davis, Kenneth P. Grantham | 1992-01-28 |
| 4836922 | Vibrating filter apparatus | George H. Schrink | 1989-06-06 |
| 4297209 | High solids filter | Richard B. DeVisser, Joe A. Kuiper | 1981-10-27 |