Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5400406 | Aircraft communication headset tester | Ture A. Heline, Jr. | 1995-03-21 | $4,330,000 |
| 4971398 | Suppression control of cab signal automated brake application | — | 1990-11-20 | $1,606,000 |
| 4607383 | Throat microphone | — | 1986-08-19 | $272,000 |
| 4508936 | Local external communication system | — | 1985-04-02 | $195,000 |