Inventor
KNOBLE DAVID W
US30 patents
⚠️ This page may combine multiple inventors who share the name “KNOBLE DAVID W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GEN ELECTRIC
12 patentsUS4691341ASep 1, 1987
Method of transferring digital information and street lighting control system
GEN ELECTRIC152 citations95
US4051411ASep 27, 1977
Discharge lamp operating circuit
GEN ELECTRIC19 citations80
US4275337AJun 23, 1981
Starting and operating circuit for gaseous discharge lamps
GEN ELECTRIC22 citations76
US4187449AFeb 5, 1980
Discharge lamp operating circuit
GEN ELECTRIC11 citations74
US4051410ASep 27, 1977
Discharge lamp operating circuit
GEN ELECTRIC9 citations74
US4051412ASep 27, 1977
Discharge lamp operating circuit
GEN ELECTRIC8 citations73
US3976910AAug 24, 1976
Operating circuit for discharge lamps with voltage starting circuit and auxiliary lighting means therefor
GEN ELECTRIC18 citations73
US4754201AJun 28, 1988
Magnetic low load factor series ballast circuit
GEN ELECTRIC7 citations70
US5115165AMay 19, 1992
Safety lighting means for use with a high intensity discharge lamp
GEN ELECTRIC6 citations63
US4931699AJun 5, 1990
Ballast system including a starting aid for a gaseous discharge lamp
GEN ELECTRIC2 citations63
US4916364AApr 10, 1990
Parallel arranged starting circuit for gaseous discharge lamps
GEN ELECTRIC5 citations63
US4048543ASep 13, 1977
Discharge lamp operating circuit
GEN ELECTRIC5 citations62
GENLYTE THOMAS GROUP LLC
8 patentsUS7631985B1Dec 15, 2009
Finite element and multi-distribution LED luminaire
GENLYTE THOMAS GROUP LLC24 citations90
USD504705SMay 3, 2005
Combination exit sign and emergency lighting unit
GENLYTE THOMAS GROUP LLC23 citations86
US6346782B1Feb 12, 2002
Multiple lamp ballast system
GENLYTE THOMAS GROUP LLC10 citations74
USRE40619EJan 6, 2009
Efficient fluorescent lighting system
GENLYTE THOMAS GROUP LLC5 citations73
US6817732B1Nov 16, 2004
Efficiency fluorescent lighting system
GENLYTE THOMAS GROUP LLC11 citations73
US6463436B1Oct 8, 2002
Interactive photometric calculations system
GENLYTE THOMAS GROUP LLC4 citations63
US7172323B1Feb 6, 2007
Light emitting diode light spreader
GENLYTE THOMAS GROUP LLC5 citations60
USD489766SMay 11, 2004
Exit sign
GENLYTE THOMAS GROUP LLC5 citations57
KNOBLE DAVID W
4 patentsUS8070328B1Dec 6, 2011
LED downlight
KNOBLE DAVID W174 citations98
US8177397B1May 15, 2012
LED heat management system
KNOBLE DAVID W10 citations82
US8076859B1Dec 13, 2011
Emergency sign power supply with battery charger
KNOBLE DAVID W3 citations61
US10443797B2Oct 15, 2019
Finite element and multi-distribution LED luminaire
KNOBLE DAVID W0 citations48