Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5934683 | Rotary seal assembly having grooved seal facing | — | 1999-08-10 |
| 5525039 | Hermetically sealed magnetic drive pump | — | 1996-06-11 |
| 5238253 | Regenerative turbine flow inducer for double or tandem mechanical seals | — | 1993-08-24 |
| 5137418 | Floating self-centering turbine impeller | — | 1992-08-11 |
| 4479756 | Multi-stage pump | — | 1984-10-30 |
| 4299536 | Multi-stage pumps | Larry Barnhouse | 1981-11-10 |
| 4248571 | Centrifugal impellers | — | 1981-02-03 |