Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5345428 | Flextensional transducers | George Bromfield, John C. Gardner | 1994-09-06 |
| 5029148 | Sonar Transducers | George Bromfield, John C. Gardner | 1991-07-02 |
| 5016228 | Sonar transducers | George Bromfield, John C. Gardner | 1991-05-14 |