Inventor
LIU DA
US71 patents
⚠️ This page may combine multiple inventors who share the name “LIU DA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
LIU DA
14 patentsUS8830159B2Sep 9, 2014
Controller circuitry for light emitting diodes
LIU DA6 citations84
US8253352B2Aug 28, 2012
Circuits and methods for powering light sources
LIU DA11 citations84
US8237379B2Aug 7, 2012
Circuits and methods for powering light sources
LIU DA10 citations84
US8148919B2Apr 3, 2012
Circuits and methods for driving light sources
LIU DA15 citations84
US8143800B2Mar 27, 2012
Circuits and methods for driving a load with power factor correction function
LIU DA9 citations84
US8587221B2Nov 19, 2013
DC/DC converter with multiple outputs
LIU DA6 citations73
US8711119B2Apr 29, 2014
Display systems with touch screens
LIU DA4 citations64
US8531123B2Sep 10, 2013
DC/DC converter with multiple outputs
LIU DA2 citations63
USD1118812SMar 17, 2026
Animal repellent with air purification function
LIU DA0 citations62
USD1117610SMar 10, 2026
Flying insect trap
LIU DA0 citations62
USD1117607SMar 10, 2026
Rat repellent device
LIU DA0 citations62
USD1117611SMar 10, 2026
Insect trap
LIU DA0 citations62
USD1069321SApr 8, 2025
Glove
LIU DA0 citations62
USD1069320SApr 8, 2025
Glove
LIU DA0 citations62
O2MICRO INT LTD
13 patentsUS7847783B2Dec 7, 2010
Controller circuitry for light emitting diodes
O2MICRO INT LTD58 citations98
US6856519B2Feb 15, 2005
Inverter controller
O2MICRO INT LTD88 citations98
US6809938B2Oct 26, 2004
Inverter controller
O2MICRO INT LTD72 citations98
US7120035B2Oct 10, 2006
Inverter controller
O2MICRO INT LTD47 citations96
US6900993B2May 31, 2005
Inverter controller
O2MICRO INT LTD52 citations96
US6897698B1May 24, 2005
Phase shifting and PWM driving circuits and methods
O2MICRO INT LTD60 citations94
US7425949B2Sep 16, 2008
Power supply for an LCD panel
O2MICRO INT LTD18 citations93
US7768806B2Aug 3, 2010
Mixed-code DC/AC inverter
O2MICRO INT LTD10 citations84
US7151394B2Dec 19, 2006
Phase shifting and PWM driving circuits and methods
O2MICRO INT LTD14 citations82
US7248240B2Jul 24, 2007
Protection for external electrode fluorescent lamp system
O2MICRO INT LTD9 citations74
US7911463B2Mar 22, 2011
Power supply topologies for inverter operations and power factor correction operations
O2MICRO INT LTD5 citations63
US7554273B2Jun 30, 2009
Protection for external electrode fluorescent lamp system
O2MICRO INT LTD2 citations63
US7550928B2Jun 23, 2009
Driving circuit for multiple cold cathode fluorescent lamps backlight applications
O2MICRO INT LTD2 citations63
ZOOX INC
6 patentsUS11034254B2Jun 15, 2021
Underbody charging of vehicle batteries
ZOOX INC21 citations93
US11541765B2Jan 3, 2023
Underbody charging of vehicle batteries
ZOOX INC4 citations74
US10682921B2Jun 16, 2020
Underbody charging of vehicle batteries
ZOOX INC4 citations72
US12180766B1Dec 31, 2024
Multiplane object detection
ZOOX INC2 citations68
US12162401B2Dec 10, 2024
Vehicular lighting using passive and/or active optics
ZOOX INC0 citations60
US11608972B2Mar 21, 2023
Vehicular lighting using passive and/or active optics
ZOOX INC0 citations60
02MICRO INTERNAT LTD
3 patentsDONGGUAN BESTNEOPRENE SPORTING GOODS CO LTD
3 patentsO2MICRO INC
2 patents02MICRO INC
1 patent02 MICRO INTERNAT LTD
1 patent02 MICRO INC
1 patentRAN KAIPING
1 patentLIN YUNG-LIN
1 patentHSU CHENG-WEI
1 patentIBM
1 patentECOVACS ROBOTICS CO LTD
1 patentLEI WEI
1 patentShowing the top 50 of 71 patents by PatentIndex Score.