Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4893986 | High-pressure high-temperature coal slurry centrifugal pump and let-down turbine | George S. K. Wong | 1990-01-16 |
| 4644202 | Sealed and balanced motor and fluid pump system | Ralph E. Kroy | 1987-02-17 |
| 4644207 | Integrated dual pump system | Ralph E. Kroy | 1987-02-17 |
| 4443152 | Axial slurry pump | George S. K. Wong, Clifford A. Hauenstein | 1984-04-17 |
| 4428717 | Composite centrifugal impeller for slurry pumps | — | 1984-01-31 |
| 4307995 | Vaneless multistage pump | — | 1981-12-29 |
| 4199152 | Hydrostatic seal for centrifugal pumps | — | 1980-04-22 |