Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE32135 | Compact universal drum filter settler | John L. Creps, Robert J. Fox, Eugene H. Harms, Stephen N. McEwen | 1986-05-06 |
| 4507061 | Check valve and pump receptor assembly | Stephen N. McEwen | 1985-03-26 |
| 4421645 | Compact universal drum filter settler | John L. Creps, Robert J. Fox, Eugene H. Harms, Stephen N. McEwen | 1983-12-20 |