Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5039916 | Operating circuit for a high-pressure discharge lamp | Lodewijk H. M. Meessen, Ralf Schafer, Steven Kemmink | 1991-08-13 | |
| 4952846 | Circuit arrangement for operating a high-pressure sodium discharge lamp | Petrus Johannes Mathijs Van Der Burgt | 1990-08-28 | |
| 4588924 | High efficiency converter for discharge lamps | Meerten Luursema | 1986-05-13 | $1,168,000 |
| 4353116 | Direct current to alternating current converter | Hubertus M. J. Chermin | 1982-10-05 | $335,000 |