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
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 ...


3
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 ...


4
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 ...


5
Susan J Leong: Tubular housing with light emitting diodes. Susan J Leong, May 20, 2004: US20040095078-A1

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 ...


6
Susan J Leong, John Kit: Led retrofit lamp. Susan J Leong, September 30, 2004: US20040189218-A1

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 ...


7
Susan J Leong, John Kit: Power Controls for Tube Mounted Leds With Ballast. Ms Kam Ling Wong, DeNovo Lighting, November 27, 2008: US20080290814-A1

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 ...


8
Susan J Leong, John Kit: Power controls for tube mounted LEDs with ballast. DeNovo Lighting, Susan J Leong, July 28, 2005: US20050162101-A1

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
Susan J Leong, John Kit: Power controls with photosensor for tube mounted LEDs with ballast. DeNovo Lighting, Susan J Leong, December 22, 2005: US20050281030-A1

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 ...