Inventor
CHOU CHING-HO
TW45 patents
⚠️ This page may combine multiple inventors who share the name “CHOU CHING-HO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
DELTA ELECTRONICS INC
34 patentsUSD875680SFeb 18, 2020
Power supply for light emitting device
DELTA ELECTRONICS INC18 citations94
US8890436B2Nov 18, 2014
Color temperature adjustable LED lamp
DELTA ELECTRONICS INC21 citations92
USD880742SApr 7, 2020
Lighting fixture
DELTA ELECTRONICS INC20 citations91
USD692827SNov 5, 2013
Power supply
DELTA ELECTRONICS INC31 citations90
USD936581SNov 23, 2021
Power supply
DELTA ELECTRONICS INC9 citations85
USD993177SJul 25, 2023
Power supply
DELTA ELECTRONICS INC8 citations84
USD1007422SDec 12, 2023
Power supply
DELTA ELECTRONICS INC4 citations73
USD895547SSep 8, 2020
Light emitting diode driver
DELTA ELECTRONICS INC4 citations72
USD924174SJul 6, 2021
Surge absorber
DELTA ELECTRONICS INC5 citations71
US9648690B1May 9, 2017
Dimmable instant-start ballast
DELTA ELECTRONICS INC4 citations71
US11147180B2Oct 12, 2021
Waterproof casing
DELTA ELECTRONICS INC1 citations62
US11388800B2Jul 12, 2022
Power supply for light-emitting diode and operating method thereof
DELTA ELECTRONICS INC0 citations61
US10986746B2Apr 20, 2021
Power supply device with PCB positioning function and method for manufacturing the same
DELTA ELECTRONICS INC1 citations61
US12543250B2Feb 3, 2026
LED driver, LED lighting system and operating method thereof
DELTA ELECTRONICS INC0 citations59
US6936979B2Aug 30, 2005
Frequency-modulated dimming control system of discharge lamp
DELTA ELECTRONICS INC3 citations57
US11026338B2Jun 1, 2021
Waterproof casing of outdoor wireless electronic device
DELTA ELECTRONICS INC0 citations52
US10159125B1Dec 18, 2018
LED power supply device
DELTA ELECTRONICS INC1 citations52
US10152068B1Dec 11, 2018
Electrical ballast and driving method thereof
DELTA ELECTRONICS INC1 citations51
US12408248B2Sep 2, 2025
LED power supply
DELTA ELECTRONICS INC0 citations50
US12349247B2Jul 1, 2025
LED power supply equipment with bi-level dimming
DELTA ELECTRONICS INC0 citations50
US11991797B2May 21, 2024
LED power supply with bi-level dimming and bi-level dimming method
DELTA ELECTRONICS INC0 citations50
US11991818B2May 21, 2024
Electronic device and grounding structure thereof
DELTA ELECTRONICS INC0 citations50
US11678443B2Jun 13, 2023
Hanging grounded structure
DELTA ELECTRONICS INC0 citations50
US11646655B2May 9, 2023
LLC resonant converter and control method thereof
DELTA ELECTRONICS INC0 citations50
US10104794B2Oct 16, 2018
Electronic device and metal housing thereof
DELTA ELECTRONICS INC0 citations50
US8378592B2Feb 19, 2013
End of lamp life protection circuit with bi-level detections for the electronic ballast and method thereof
DELTA ELECTRONICS INC0 citations46
US12593384B2Mar 31, 2026
LED driver and operating method thereof
DELTA ELECTRONICS INC0 citations43
US7477020B2Jan 13, 2009
Electronic ballast having a reduced reverse voltage at the start
DELTA ELECTRONICS INC0 citations42
US11343892B2May 24, 2022
Light source system, driver and operating method thereof
DELTA ELECTRONICS INC0 citations41
US9544980B2Jan 10, 2017
Driving device and illumination system
DELTA ELECTRONICS INC0 citations41
US9232619B2Jan 5, 2016
Fluorescent electronic ballast
DELTA ELECTRONICS INC0 citations41
US10865976B2Dec 15, 2020
Light-emitting diode driver with wireless device function
DELTA ELECTRONICS INC0 citations40
US10249967B2Apr 2, 2019
Electronic device and connecting method
DELTA ELECTRONICS INC0 citations39
US9351379B2May 24, 2016
Integrated light-emitting diode driver circuit and method of operating the same
DELTA ELECTRONICS INC0 citations38
CHOU CHING-HO
6 patentsUS8760059B2Jun 24, 2014
Current-preheat electronic ballast and resonant capacitor adjusting circuit thereof
CHOU CHING-HO2 citations60
US8508154B2Aug 13, 2013
Lighting devices
CHOU CHING-HO3 citations58
US8159142B2Apr 17, 2012
Ballast being capable of saving the use of internal connection terminals
CHOU CHING-HO3 citations58
US8587207B2Nov 19, 2013
Electronic ballast
CHOU CHING-HO3 citations55
US9426869B2Aug 23, 2016
Multi-output electronic ballast
CHOU CHING-HO0 citations39
US8658915B2Feb 25, 2014
Two-way wiring device
CHOU CHING-HO0 citations37