Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8227997 | Lamp driving circuit | Engbert Bernard Gerard Nijhof, Jozef Petrus Emanuel De Krijger, Cong Khanh Pham | 2012-07-24 |
| 8174202 | Lamp driving circuit | Engbert Bernard Gerard Nijhof, Jozef Petrus Emanuel De Krijger | 2012-05-08 |
| 8174211 | Method and system for operating a discharge lamp such as to detect defective operation of the lamp | Engbert Bernard Gerard Nijhof, Jozef Petrus Emanuel De Krijger, Jozef Alma Lodewijk Maria Ghijselen | 2012-05-08 |
| 7030572 | Lighting arrangement | Engbert Bernard Gerard Nijhof, Johannes Matheus Theodorus Lambertus Claessens, Jozef Petrus Emanuel De Krijger | 2006-04-18 |
| 6972525 | Led switching arrangement | Engbert Bernard Gerard Nijhof | 2005-12-06 |
| 6933767 | Circuit arrangement | Johannes Mathcus Theodorus Lambertus Claessens, Jozef Petrus Emanuel De Krijger, Engbert Bernard Gerard Nijhof | 2005-08-23 |
| 6930452 | Circuit arrangement | Jozef Petrus Emanuel De Krijger, Armand Boudewijn Perduijn, Engbert Bernard Gerard Nijhof | 2005-08-16 |
| 6922022 | LED switching arrangement for enhancing electromagnetic interference | Engbert Bernard Gerard Nijhof | 2005-07-26 |
| 6430065 | Power circuit for a semiconductor light source operable from a solid state relay | Engbert Bernard Gerard Nijhof, Johannes E. Algra | 2002-08-06 |
| 6304464 | Flyback as LED driver | Ronny A. A. M. Jacobs, Bertrand Johan Edward Hontele, John De Clercq, Engbert Bernard Gerard Nijhof | 2001-10-16 |
| 6147458 | Circuit arrangement and signalling light provided with the circuit arrangement | Engbert Bernard Gerard Nijhof, Johannes E. Algra, John De Clercq, Pieter W. Habing, Stefan E. Roijers | 2000-11-14 |
| 6118259 | Controlled current generator for operating light emitting diodes | Engbert Bernard Gerard Nijhof | 2000-09-12 |
| 6094014 | Circuit arrangement, and signaling light provided with the circuit arrangement | Engbert Bernard Gerard Nijhof | 2000-07-25 |
| 6051935 | Circuit arrangement for controlling luminous flux produced by a light source | Engbert Bernard Gerard Nijhof | 2000-04-18 |
| 6040663 | Circuit arrangement | Engbert Bernard Gerard Nijhof | 2000-03-21 |
| 6013988 | Circuit arrangement, and signalling light provided with the circuit arrangement | Engbert Bernard Gerard Nijhof | 2000-01-11 |
| 5781424 | Static converter for an incandescent lamp having a delayed start | — | 1998-07-14 |