Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4892652 | Curved diverter plate assembly for interchangeability of various models of traveling water screens | Michael P. Hunnemann, Stephen B. Thomas | 1990-01-09 |
| 4324151 | Four quadrant control lever restraint | — | 1982-04-13 |