Inventor
MATTAS CHARLES B
US10 patents
⚠️ This page may combine multiple inventors who share the name “MATTAS CHARLES B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILIPS CORP
5 patentsUS5404082AApr 4, 1995
High frequency inverter with power-line-controlled frequency modulation
PHILIPS CORP645 citations97
US5686798ANov 11, 1997
Lamp ballast circuit characterized by a single resonant frequency substantially greater than the fundamental frequency of the inverter output signal
PHILIPS CORP26 citations92
US5463284AOct 31, 1995
Lamp ballast circuit characterized by a single resonant frequency substantially greater than the fundamental frequency of the inverter output signal
PHILIPS CORP28 citations92
US5089753AFeb 18, 1992
Arrangement for predicting failure in fluorescent lamp systems
PHILIPS CORP27 citations92
US4958107ASep 18, 1990
Switching arrangement for HID lamps
PHILIPS CORP30 citations87
PHILIPS ELECTRONICS NA
4 patentsUS5563473AOct 8, 1996
Electronic ballast for operating lamps in parallel
PHILIPS ELECTRONICS NA73 citations95
US5410221AApr 25, 1995
Lamp ballast with frequency modulated lamp frequency
PHILIPS ELECTRONICS NA102 citations94
US5945784AAug 31, 1999
High intensity discharge ballast
PHILIPS ELECTRONICS NA9 citations73
US6215663B1Apr 10, 2001
Printed circuit board assembly with improved thermal performance
PHILIPS ELECTRONICS NA3 citations62