Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4441783 | Vessel navigation lights | Alexander J. Houghton | 1984-04-10 |
| 4367519 | Vessel navigation lights | Alexander J. Houghton | 1983-01-04 |
| 4246042 | Fixed solar energy concentrator | Alexander J. Houghton | 1981-01-20 |