Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12040842 | Acoustic lens multi-beam communication system | — | 2024-07-16 |
| 6504314 | Discharge lamp DC ballast employing only passive components | Ulrich Böke, Hubert Raets, Johannes A. A. Wijntjes | 2003-01-07 |
| 6377087 | Driving scheme for bipolar transistors | — | 2002-04-23 |
| 6342816 | Voltage limiting bias circuit for reduction of hot electron degradation effects in MOS cascode circuits | — | 2002-01-29 |
| 6175195 | Triac dimmable compact fluorescent lamp with dimming interface | Jerzy Janczak | 2001-01-16 |
| 6043611 | Dimmable compact fluorescent lamp | Jerzy Janczak | 2000-03-28 |
| 6020689 | Anti-flicker scheme for a fluorescent lamp ballast driver | Ihor Wacyk | 2000-02-01 |
| 6011357 | Triac dimmable compact fluorescent lamp with low power factor | Jerzy Janczak | 2000-01-04 |
| 6011360 | High efficiency dimmable cold cathode fluorescent lamp ballast | Wen-Jian Gu, Ihor Wacyk | 2000-01-04 |
| 5986897 | Switched-mode power supply having a circuit arrangement for turning the switching device when a voltage on the switching device is at a minimum | Navid Majid | 1999-11-16 |
| 5982110 | Compact fluorescent lamp with overcurrent protection | — | 1999-11-09 |
| 5982159 | Dimmable, single stage fluorescent lamp | Jerzy Janczak | 1999-11-09 |
| 5973437 | Scheme for sensing ballast lamp current | Ihor Wacyk | 1999-10-26 |
| 5969482 | Circuit arrangement for operating a discharge lamp including real power sensing using a single quadrant multiplier | — | 1999-10-19 |
| 5917717 | Ballast dimmer with passive power feedback control | Paulus P. B. Arts, Everaard Marie Jozef Aendekerk, Machiel A. M. Hendrix, Jerzy Janczak | 1999-06-29 |
| 5559396 | Ballast filtering scheme for reduced harmonic distortion | Gert W. Bruning | 1996-09-24 |
| 5469144 | Method and apparatus using threshold techniques for generating an alarm in a bio-sensor | Mark Kaynor, David Gruber | 1995-11-21 |