Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5031313 | Method of forming F.O.D.-resistant blade | Robert A. Schaefer | 1991-07-16 |
| 4961686 | F.O.D.-resistant blade | Robert A. Schaefer | 1990-10-09 |
| 4653976 | Method of compressing a fluid flow in a multi stage centrifugal impeller | Alexander C. Bryans | 1987-03-31 |
| 4502837 | Multi stage centrifugal impeller | Alexander C. Bryans | 1985-03-05 |