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John D. Grainger
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Fremont, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Power factor control for an LED bulb driver circuit
Patent number
9,049,761
Issue date
Jun 2, 2015
Switch Bulb Company, Inc.
Stanley Canter
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Thermal protection circuit for an LED bulb
Patent number
8,754,594
Issue date
Jun 17, 2014
Switch Bulb Company, Inc.
Ronald J. Lenk
F21 - LIGHTING
Information
Patent Grant
Power factor control for an LED bulb driver circuit
Patent number
8,461,767
Issue date
Jun 11, 2013
Switch Bulb Company, Inc.
Stanley Canter
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Thermal protection circuit for an LED bulb
Patent number
8,283,877
Issue date
Oct 9, 2012
Switch Bulb Company, Inc.
Ronald J. Lenk
F21 - LIGHTING
Information
Patent Grant
Power factor control for an LED bulb driver circuit
Patent number
8,188,671
Issue date
May 29, 2012
Switch Bulb Company, Inc.
Stanley Canter
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
THERMAL PROTECTION CIRCUIT FOR AN LED BULB
Publication number
20150102724
Publication date
Apr 16, 2015
Switch Bulb Company, Inc.
Ronald J. LENK
F21 - LIGHTING
Information
Patent Application
POWER FACTOR CONTROL FOR AN LED BULB DRIVER CIRCUIT
Publication number
20130271000
Publication date
Oct 17, 2013
Stanley CANTER
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
DIMMER COMPATIABLE LED BULB DRIVER CIRCUIT
Publication number
20130257302
Publication date
Oct 3, 2013
Switch Bulb Company, Inc.
Stanley Canter
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
THERMAL PROTECTION CIRCUIT FOR AN LED BULB
Publication number
20130033179
Publication date
Feb 7, 2013
Switch Bulb Company, Inc.
Ronald J. LENK
F21 - LIGHTING
Information
Patent Application
POWER FACTOR CONTROL FOR AN LED BULB DRIVER CIRCUIT
Publication number
20120313520
Publication date
Dec 13, 2012
Switch Bulb Company, Inc.
Stanley CANTER
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Power Factor Control For An LED Bulb Driver Circuit
Publication number
20110298375
Publication date
Dec 8, 2011
Switch Bulb Company, Inc.
Stanley CANTER
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
THERMAL PROTECTION CIRCUIT FOR AN LED BULB
Publication number
20110298374
Publication date
Dec 8, 2011
Switch Bulb Company, Inc.
Ronald J. Lenk
F21 - LIGHTING