Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4438483 | Utility handlamp and charging component means therefor | John E. Gulliksen, Roy A. Guimond, William H. Hamilton | 1984-03-20 |
| 4428039 | Safety lamp apparatus including means for preventing accidental breakage of a bulb member | Roy A. Guimond, John E. Gulliksen | 1984-01-24 |
| 4386391 | Luminaire apparatus with multiple light sources including method and means for switching and adjusting focus of the light sources | John E. Gulliksen, Roy A. Guimond | 1983-05-31 |