Issued Patents All Time
Showing 26–32 of 32 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863177 | Split labyrinth seal | Richard P. Antkowiak, John S. Pehl | 1989-09-05 |
| 4625977 | Convertible, stand-by rotary seal assembly | Henri V. Azibert | 1986-12-02 |
| 4572517 | Labyrinth ring seals with housing mounting means | Richard P. Antkowiak, Douglas J. Hill | 1986-02-25 |
| 4547771 | Vibration sensor | Victor Ximenes | 1985-10-15 |
| 4501530 | Centrifugal pump | Richard P. Antkowiak | 1985-02-26 |
| 4439096 | Impeller adjuster for centrifugal pump | Richard P. Antkowiak | 1984-03-27 |
| 4406465 | Centrifugal pump | Richard P. Antkowiak | 1983-09-27 |