Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4398398 | Acoustical heat pumping engine | John C. Wheatley, Gregory W. Swift | 1983-08-16 |
| 4326417 | Nondestructive acoustic electric field probe apparatus and method | — | 1982-04-27 |