Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5477109 | Discharge lamp fast preheat circuit independent of type of ballast | Ronald Siepkes | 1995-12-19 |
| 5166581 | Discharge lamp ignitor which adjusts the amplitude of ignition pulses | Egbert Van Zanten | 1992-11-24 |
| 5122714 | Switching device and high-pressure discharge lamp | Egbert Van Zanten | 1992-06-16 |
| 4769578 | High-pressure sodium discharge lamp | Cornelis A. J. Jacobs | 1988-09-06 |
| 4647820 | Discharge lamp ignition and supply circuit having a PTC resistor | Jaap Rozenboom | 1987-03-03 |
| 4380719 | Electronic device for the starting and a.c. voltage operation of a gas and/or vapor discharge lamp | Adrianus M. J. De Bijl | 1983-04-19 |
| 4353116 | Direct current to alternating current converter | Hilbert Palmers | 1982-10-05 |
| 4253043 | Electric arrangement including at least one gas and/or vapor discharge tube | Jozef C. Moerkens, Adrianus M. J. De Bijl | 1981-02-24 |
| 4181872 | Starter for igniting a gas and/or vapor discharge lamp | — | 1980-01-01 |