Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4930979 | Compressors | Frank B. Fisher | 1990-06-05 |
| 4743161 | Compressors | Frank B. Fisher | 1988-05-10 |
| 4543041 | Impellor for centrifugal compressor | Pierre Bernard French | 1985-09-24 |