Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6707260 | Circuit arrangement including DC-AC converter having a dependable start circuit | Feng-Kang Hu, Yimin Chen | 2004-03-16 |
| 6028400 | Discharge lamp circuit which limits ignition voltage across a second discharge lamp after a first discharge lamp has already ignited | Paul R. Veldman, Johannes M. Van Meurs | 2000-02-22 |
| 5929573 | Switching device having varying RC time period for ignition of a lamp | Johannes A. M. Louwers | 1999-07-27 |
| 5903110 | Igniting circuit operated by varying the impedance value of the controller | Paul R. Veldman | 1999-05-11 |