Inventor · disambiguated record
Yifeng Qiu
Also filed as: QIU YIFENG
68 granted patents·1 pending application·168 citations·filing 2012–2023
98Inventor score
Files withLUMILEDS LLC60LUMILEDS HOLDING BV4PHILIPS LIGHTING HOLDING BV2KONINKLIJKE PHILIPS NV1RADERMACHER HARALD JOSEF GUNTHER1
Top patents by PatentIndex Score
69 records- 0198US11240895B2Hybrid driving scheme for RGB color tuningLUMILEDS LLC·Filed 2020·Granted Feb 1, 2022·8 cites·20 claims
- 0296US11172558B2Dim-to-warm LED circuitLUMILEDS LLC·Filed 2020·Granted Nov 9, 2021·4 cites·21 claims
- 0396US10517156B1Hybrid driving scheme for RGB color tuningLUMILEDS HOLDING BV·Filed 2019·Granted Dec 24, 2019·21 cites·27 claims
- 0495US10772169B1Wireless color tuning for constant-current driverLUMILEDS LLC·Filed 2019·Granted Sep 8, 2020·11 cites·26 claims
- 0594US10652962B1Dim-to-warm LED circuitLUMILEDS LLC·Filed 2019·Granted May 12, 2020·13 cites·20 claims
- 0693US10622405B2Light fixture with dynamically controllable light distributionLUMILEDS LLC·Filed 2019·Granted Apr 14, 2020·8 cites·20 claims
- 0793US10136489B1Illumination system including tunable light engineLUMILEDS LLC·Filed 2017·Granted Nov 20, 2018·9 cites·20 claims
- 0892US11743980B2Wireless color tuning for constant-current driverLUMILEDS LLC·Filed 2022·Granted Aug 29, 2023·1 cites·20 claims
- 0992US10555395B1Selecting parameters in a color-tuning applicationLUMILEDS HOLDING BV·Filed 2019·Granted Feb 4, 2020·8 cites·20 claims
- 1091US11477864B2Wireless color tuning for constant-current driverLUMILEDS LLC·Filed 2020·Granted Oct 18, 2022·2 cites·21 claims
- 1191US11109468B1Lighting apparatus with reduced abrupt brightness changesLUMILEDS LLC·Filed 2020·Granted Aug 31, 2021·2 cites·20 claims
- 1290US11485283B2Light engines with dynamically controllable light distributionLUMILEDS LLC·Filed 2020·Granted Nov 1, 2022·2 cites·20 claims
- 1388US10821890B2Light engines with dynamically controllable light distributionLUMILEDS LLC·Filed 2019·Granted Nov 3, 2020·4 cites·20 claims
- 1488US10182488B2Radio frequency (RF) controlled lamp with dimmer compatibilityPHILIPS LIGHTING HOLDING BV·Filed 2015·Granted Jan 15, 2019·7 cites·13 claims
- 1588US8917027B2Driving device and method for driving a load, in particular an LED assemblyRADERMACHER HARALD JOSEF GUNTHER·Filed 2012·Granted Dec 23, 2014·11 cites·20 claims
- 1687US10872923B2Light engines with dynamically controllable light distributionLUMILEDS HOLDING BV·Filed 2019·Granted Dec 22, 2020·4 cites·22 claims
- 1787US10487995B2Cuttable LED stripLUMILEDS LLC·Filed 2017·Granted Nov 26, 2019·4 cites·20 claims
- 1885US10827592B1Offline lighting configuration toolLUMILEDS LLC·Filed 2019·Granted Nov 3, 2020·3 cites·25 claims
- 1985US10034346B2Dim to warm controller for LEDsLUMILEDS LLC·Filed 2017·Granted Jul 24, 2018·4 cites·20 claims
- 2083US10925129B2Illumination system including tunable light engineLUMILEDS LLC·Filed 2020·Granted Feb 16, 2021·1 cites·22 claims
- 2182US11140758B2Hybrid driving scheme for RGB color tuningLUMILEDS LLC·Filed 2019·Granted Oct 5, 2021·2 cites·20 claims
- 2282US10750588B2Light fixture with dynamically controllable light distributionLUMILEDS LLC·Filed 2019·Granted Aug 18, 2020·3 cites·19 claims
- 2382US10674576B2Illumination system including tunable light engineLUMILEDS LLC·Filed 2018·Granted Jun 2, 2020·2 cites·20 claims
- 2481US12133300B2Wireless color tuning for constant-current driverLUMILEDS LLC·Filed 2023·Granted Oct 29, 2024·0 cites·20 claims
- 2581US11109457B2Arbitrary-ratio analog current division circuitLUMILEDS LLC·Filed 2020·Granted Aug 31, 2021·1 cites·18 claims
- 2681US10845529B2Light engines with dynamically controllable light distributionLUMILEDS HOLDING BV·Filed 2019·Granted Nov 24, 2020·3 cites·20 claims
- 2781US10716183B2Method for wide-range CCT tuning that follows the black body line using two independently controlled current channels and three CCTsLUMILEDS LLC·Filed 2017·Granted Jul 14, 2020·2 cites·17 claims
- 2881US10444421B2LED-based light fixtureLUMILEDS LLC·Filed 2017·Granted Oct 15, 2019·2 cites·20 claims
- 2981US10205342B2Lighting system including a power backup deviceLUMILEDS LLC·Filed 2018·Granted Feb 12, 2019·2 cites·15 claims
- 3081US10027166B2Lighting system including a power backup deviceLUMILEDS LLC·Filed 2017·Granted Jul 17, 2018·2 cites·20 claims
- 3180US10912171B1Control design for perceptually uniform color tuningLUMILEDS LLC·Filed 2019·Granted Feb 2, 2021·2 cites·24 claims
- 3280US10257904B2Dim to warm controller for LEDsLUMILEDS LLC·Filed 2018·Granted Apr 9, 2019·2 cites·20 claims
- 3379US10868076B2Light fixture with dynamically controllable light distributionLUMILEDS LLC·Filed 2020·Granted Dec 15, 2020·1 cites·20 claims
- 3479US10588194B1Arbitrary-ratio analog current division circuitLUMILEDS LLC·Filed 2018·Granted Mar 10, 2020·2 cites·20 claims
- 3578US11116055B2Time slicing method for multi-channel color tuning using a single current source inputLUMILEDS LLC·Filed 2018·Granted Sep 7, 2021·2 cites·20 claims
- 3678US10943945B2Light fixture with dynamically controllable light distributionLUMILEDS LLC·Filed 2019·Granted Mar 9, 2021·2 cites·22 claims
- 3777US11700679B2Method for wide-range CCT tuning that follows the black body line using two independently controlled current channels and three CCTsLUMILEDS LLC·Filed 2022·Granted Jul 11, 2023·0 cites·22 claims
- 3876US11076461B2User control modality for LED color tuningLUMILEDS LLC·Filed 2019·Granted Jul 27, 2021·2 cites·20 claims
- 3975US12276827B2Low Z-height LED arrays with controllable light beamsLUMILEDS LLC·Filed 2022·Granted Apr 15, 2025·0 cites·16 claims
- 4075US11807162B2Light engines with dynamically controllable light distributionLUMILEDS LLC·Filed 2022·Granted Nov 7, 2023·0 cites·20 claims
- 4175US11333821B2Flexible low Z-height LED arrays with controllable light beamsLUMILEDS LLC·Filed 2019·Granted May 17, 2022·1 cites·20 claims
- 4275US10641941B2LED-based light fixtureLUMILEDS LLC·Filed 2019·Granted May 5, 2020·1 cites·20 claims
- 4374US10874008B2Dim to warm controller for LEDsLUMILEDS LLC·Filed 2019·Granted Dec 22, 2020·1 cites·21 claims
- 4473US10039165B2Multi-pad, multi-junction LED packageLUMILEDS LLC·Filed 2017·Granted Jul 31, 2018·2 cites·20 claims
- 4572US10959306B2Dimming LED circuit augmenting DC/DC controller integrated circuitLUMILEDS LLC·Filed 2017·Granted Mar 23, 2021·2 cites·15 claims
- 4672US10859757B2Light fixture with light guide and radially emitting LEDsLUMILEDS LLC·Filed 2019·Granted Dec 8, 2020·1 cites·19 claims
- 4771US10785847B2Light engines with dynamically controllable light distributionLUMILEDS LLC·Filed 2018·Granted Sep 22, 2020·1 cites·21 claims
- 4870US11404903B2Lighting system including a power backup deviceLUMILEDS LLC·Filed 2020·Granted Aug 2, 2022·0 cites·20 claims
- 4969US11510302B2Lighting apparatus with reduced abrupt brightness changesLUMILEDS LLC·Filed 2021·Granted Nov 22, 2022·0 cites·20 claims
- 5069US11432382B2Method for wide-range CCT tuning that follows the black body line using two independently controlled current channels and three CCTsLUMILEDS LLC·Filed 2020·Granted Aug 30, 2022·0 cites·19 claims
Showing the top 50 of 69 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Yifeng Qiu files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →