Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4445068 | Low-pressure mercury vapor discharge lamp with internal glass fibers | Martinus J. M. Van Heel | 1984-04-24 |
| 4370595 | Low-pressure mercury vapor discharge lamp | Willem L. Konijnendijk, Robert C. Peters | 1983-01-25 |
| 4354139 | Low-pressure mercury vapor discharge lamp | Willem L. Konijnendijk, Robert C. Peters | 1982-10-12 |
| 4255687 | Low pressure mercury vapor discharge lamp | Hielke A. van Engelen | 1981-03-10 |