Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5213471 | Propeller pitch control | Edwin K. Miller, Petr Hora, David L. Joyce, John S. Mears | 1993-05-25 |
| 5137046 | Fluid metering apparatus | Francis G. Sollman | 1992-08-11 |
| 4750999 | Filter employing barrier | Douglas H. Eden | 1988-06-14 |
| 4619765 | Filter bottom construction | — | 1986-10-28 |
| 4454040 | Filter | — | 1984-06-12 |
| 4452698 | Rigid filter plate and process for manufacture of the same | Felix G. Janssen | 1984-06-05 |
| 4381998 | Rigid filter plate and process for manufacture of the same | Felix G. Janssen | 1983-05-03 |
| 4364830 | Filter bottom | — | 1982-12-21 |