Inventor
CHEN ZHI QUAN
US15 patents
⚠️ This page may combine multiple inventors who share the name “CHEN ZHI QUAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SIGNIFY HOLDING BV
9 patentsUS10904972B2Jan 26, 2021
Retrofit light emitting diode, LED, tube for reducing audible noise originating from a high frequency electronic ballast
SIGNIFY HOLDING BV3 citations72
US11006490B2May 11, 2021
Electronic ballast interface circuit
SIGNIFY HOLDING BV2 citations65
US11083058B2Aug 3, 2021
Lighting drive, lighting system and control method
SIGNIFY HOLDING BV1 citations62
US11425807B2Aug 23, 2022
LED lighting circuit and a lighting device comprising the same
SIGNIFY HOLDING BV0 citations56
US11375594B2Jun 28, 2022
Tapped linear driver and driving method
SIGNIFY HOLDING BV0 citations47
US10986713B2Apr 20, 2021
Retrofit lamp and a lighting system using the same
SIGNIFY HOLDING BV0 citations43
US10334669B2Jun 25, 2019
LED arrangement and LED driving method
SIGNIFY HOLDING BV0 citations41
US10326374B2Jun 18, 2019
Power supply circuit with converter circuit
SIGNIFY HOLDING BV0 citations40
US10537010B2Jan 14, 2020
Coded light modulation arangement
SIGNIFY HOLDING BV0 citations27
PHILIPS LIGHTING HOLDING BV
3 patentsUS9894722B2Feb 13, 2018
Driver with open output protection
PHILIPS LIGHTING HOLDING BV3 citations72
US9651730B2May 16, 2017
Lighting device and luminaire
PHILIPS LIGHTING HOLDING BV3 citations71
US10141842B2Nov 27, 2018
Power converter and an LED lighting circuit comprising the same
PHILIPS LIGHTING HOLDING BV0 citations31