Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4439846 | Sonar rangefinder system | — | 1984-03-27 |
| 4375322 | Full range variable proportional fill flash system | Richard J. Coppa | 1983-03-01 |
| 4317620 | Variable proportional fill flash | Richard J. Coppa, James K. Lim | 1982-03-02 |
| 4299461 | Exposure and flash fire control system | Richard J. Coppa, James K. Lim, John C. Ostrowski | 1981-11-10 |