Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5779456 | Magnetic drive | Jeffrey S. Richmond | 1998-07-14 |
| 5708313 | Sump pump | Jeffrey S. Richmond | 1998-01-13 |
| 5162081 | Multiple-pressure distillation | — | 1992-11-10 |
| 4741664 | Portable pump | Ronald F. Olmstead | 1988-05-03 |
| 4627790 | Portable pump with air seal | Edward S. Kuhn | 1986-12-09 |