1
Susan J Leong, John Kit: LED retrofit lamp. Denovo Lighting, February 8, 2005: US06853151 (226 worldwide citation)

An LED lamp for mounting to an existing fluorescent lamp fixture having a ballast assembly including ballast opposed electrical contacts, comprising a tubular wall generally circular in cross-section and having tubular wall ends with one or more LEDs positioned within the tubular wall between the tu ...


2
John Kit: Retrofit LED lamp for fluorescent fixtures without ballast. DeNovo Lighting, March 24, 2009: US07507001 (219 worldwide citation)

An energy saving device for an LED lamp mounted to an existing fixture for a fluorescent lamp where the ballast is removed or bypassed. The LEDs are positioned within a tube and electrical power is delivered from a power source to the LEDs. The LED lamp includes means for controlling the delivery of ...


3
Susan J Leong: Tubular housing with light emitting diodes. DeNovo Lighting, July 13, 2004: US06762562 (187 worldwide citation)

An LED lamp comprising a tubular wall circular, oval, or multi-faceted in cross-section having tubular wall ends. At least one electrical string mounted within the tubular wall extends between the tubular wall ends with at least one LED electrically mounted thereto. Electrical circuit means providin ...


4
Susan J Leong, John Kit: Power controls for tube mounted LEDs with ballast. DeNovo Lighting, June 27, 2006: US07067992 (131 worldwide citation)

A power saving device for a light emitting diode (LED) lamp mounted to an existing fixture for a fluorescent lamp having a ballast assembly and LEDs positioned within a tube and electrical power delivered from the ballast assembly to the LEDs. The LED lamp includes a device for controlling the deliv ...


5
Susan J Leong, John Kit: Power controls with photosensor for tube mounted LEDs with ballast. DeNovo Lighting L L C, February 17, 2009: US07490957 (114 worldwide citation)

A power saving device for a light emitting diode (LED) lamp mounted to an existing fixture for a fluorescent lamp having a ballast assembly and LEDs positioned within a tube and electrical power delivered from the ballast assembly to the LEDs. The LED lamp includes means for controlling the delivery ...


6
John Kit, Georgiana Hsu: Voltage regulating devices in LED lamps with multiple power sources. DeNovo Lighting, Fox Rothschild, May 20, 2014: US08729809 (4 worldwide citation)

LED driver circuits containing voltage reducing devices, voltage regulating devices, and voltage converting devices are disclosed as the main components to provide power to LEDs. The LED driver circuits are designed to work with a ballast, mains alternating current voltage, direct current voltage, a ...


7
Georgiana Hsu: Exit sign illuminated by color LEDs. DeNovo Lighting, Fox Rothschild, December 16, 2014: US08911134 (1 worldwide citation)

An exit sign comprising a housing, a plurality of green color LEDs and red color LEDs or bicolor green and red color LEDs positioned in the housing for emitting both a green color light and a red color light with a filter holder for holding a selected green color filter or a selected red color filte ...


8
Leong Susan J, Kit John: Power controls with photosensor for tube mounted leds with ballast. Denovo Lighting, Leong Susan J, Kit John, WONG Kam L, March 29, 2007: WO/2007/035203 (1 worldwide citation)

A power saving device for a light emitting diode (LED) lamp mounted to an existing fixture for a fluorescent lamp having a ballast assembly and LEDs positioned within a tube and electrical power delivered from the ballast assembly to the LEDs. The LED lamp includes means for controlling the delivery ...


9
John F Luk: Lightweight and thermally efficient LED down light. DeNovo Lighting, November 1, 2016: US09482398

A lightweight and thermally efficient LED lighting module is disclosed for recessed down light can retrofits, or as new down light installations mountable to different size junction boxes consisting of a combination heat sink and trim ring unitary metal dish for the attachment of at least one LED ar ...


10
John Kit: Retrofit LED lamp for fluorescent fixtures without ballast. Denovo Lighting, John Kit, October 4, 2007: US20070228999-A1

An energy saving device for an LED lamp mounted to an existing fixture for a fluorescent lamp where the ballast is removed or bypassed. The LEDs are positioned within a tube and electrical power is delivered from a power source to the LEDs. The LED lamp includes means for controlling the delivery of ...