Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877488 | Passive acoustic power spectra to monitor and control processing | Eugene R. Elzinga, Jr., Andrew J. Callegari, Roger W. Cohen | 1989-10-31 |
| 4824016 | Acoustic monitoring of two phase feed nozzles | Craig A. Joseph, Uri Sela, Charles L. Baker, Jr. | 1989-04-25 |