Topic leaderboard
Non-electric & semiconductor light sources
Ranked by the PatentIndex Score — a 1–99 percentile within F21K · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F21K patents became public in the last 2 years — the current frontier
- 199Louis Lerman67 patents · 988 citations
- 296Robert V. Steele36 patents · 745 citations
- 392Wilson Dau47 patents · 449 citations
- 488Aiming Xiong153 patents · 1,200 citations
- 583Xintong Liu48 patents · 649 citations
- 679Hechen Hu15 patents · 226 citations
- 775Tomas Mollnow7 patents · 566 citations
- 871George Lerman26 patents · 224 citations
- 967Jacqueline Teng26 patents · 224 citations
- 1063Ariel Meir16 patents · 97 citations
- 1158Mingbin Wang72 patents · 136 citations
- 1254Lin Zhou58 patents · 135 citations
- 1350Fangxu Dong26 patents · 140 citations
- 1446James W. Peterson10 patents · 227 citations
- 1542Jorel Lalicki9 patents · 224 citations
- 1638Daniel S. Spiro21 patents · 82 citations
- 1733Alan Barry Feit28 patents · 143 citations
- 1829Li Li17 patents · 148 citations
- 1925Raghuram L. V. Petluri44 patents · 135 citations
- 2021Guillermo Macias11 patents · 107 citations
- 2117Srinath K. Aanegola12 patents · 114 citations
- 2213Se Eun Kang7 patents · 53 citations
- 238Moo Ryong Park28 patents · 70 citations
- 244Kentarou Horibe8 patents · 98 citations
- 251Xianglong Yuan14 patents · 81 citations
Active· last 5 yrs
Sustained F21K output across the last 5 years
- 199John Ivey81 patents · 3,872 citations
- 296Louis Lerman67 patents · 988 citations
- 392Robert V. Steele36 patents · 745 citations
- 488Tseng-Lu Chien79 patents · 930 citations
- 583Wilson Dau47 patents · 449 citations
- 679Qifeng Ye33 patents · 570 citations
- 775Aiming Xiong153 patents · 1,200 citations
- 871Michael D. Danesh10 patents · 435 citations
- 967Paul Rudy36 patents · 432 citations
- 1063Carlo Scianna10 patents · 282 citations
- 1158Xintong Liu48 patents · 649 citations
- 1254George R. Hulse12 patents · 528 citations
- 1350Nadarajah Narendran13 patents · 359 citations
- 1446Steven Walter Pyshos11 patents · 242 citations
- 1542Michael V. Recker11 patents · 299 citations
- 1638Chungho Hsia31 patents · 558 citations
- 1733David Keogh11 patents · 182 citations
- 1829Hechen Hu15 patents · 226 citations
- 1925Brian Halliwell17 patents · 265 citations
- 2021Tomas Mollnow7 patents · 566 citations
- 2117George Lerman26 patents · 224 citations
- 2213Jacqueline Teng26 patents · 224 citations
- 238Yueqiang Zhang25 patents · 298 citations
- 244Charles M. Swoboda16 patents · 249 citations
- 251Scott D. Johnston7 patents · 212 citations
All-time canon
Career PatentIndex Score in F21K
- 199George G. Mueller38 patents · 21,760 citations
- 296George A. Lopez23 patents · 3,275 citations
- 392Jean C. Raymond21 patents · 1,315 citations
- 488Jos Timmermans21 patents · 1,315 citations
- 583Tetsushi Tamura15 patents · 2,226 citations
- 679John Ivey81 patents · 3,872 citations
- 775Brian Roberge8 patents · 1,722 citations
- 871Tatsumi Setomoto10 patents · 845 citations
- 967Joel M. Dry7 patents · 644 citations
- 1063Dennis Siemiet6 patents · 954 citations
- 1158Louis Lerman67 patents · 988 citations
- 1254Robert V. Steele36 patents · 745 citations
- 1350Tseng-Lu Chien79 patents · 930 citations
- 1446Chen-Ho Wu11 patents · 1,098 citations
- 1542Densen Cao22 patents · 1,079 citations
- 1638Wayne Guillien14 patents · 538 citations
- 1733Brian D. Ogonowsky10 patents · 521 citations
- 1829Wilson Dau47 patents · 449 citations
- 1925Der Jeou Chou10 patents · 893 citations
- 2021Jeffrey J. Wolf7 patents · 756 citations
- 2117Charles M. Coushaine29 patents · 1,403 citations
- 2213Pat Grosswendt8 patents · 331 citations
- 238Rudy G. Pohlert8 patents · 331 citations
- 244Scott D. Walter7 patents · 739 citations
- 251Qifeng Ye33 patents · 570 citations
Rising· last 2 yrs
The top-scoring F21K patents made public in the last 2 years
- 199US12203604B1✦ AIFilament light source assembly, filament lamp string and filament bulb5 cites · 202584% earned
- 296US12055275B1✦ AIString lamp6 cites · 202485% earned
- 392US12044365B1✦ AILight emitting diode (LED) light bulb and string light using LED light bulb4 cites · 202475% earned
- 488US11965647B1LED plant growing lamp4 cites · 202482% earned
- 583US12098828B1Rotating bracket for linear lighting4 cites · 202482% earned
- 679US12234984B2Lens for improved color mixing and beam control of an LED light source2 cites · 202453% earned
- 775USD1079067SCorn light1 cites · 202556% earned
- 871US12320478B2Lighting device2 cites · 202476% earned
- 967US12442497B2Lighting apparatus1 cites · 202567% earned
- 1063US12222076B1Electronic candle with highly simulated flame effect2 cites · 202576% earned
- 1158US12422108B2LED filament and lamp2 cites · 202576% earned
- 1254USD1046135SSuture fastener3 cites · 202463% earned
- 1350US12072069B2Method for using white light source, and white light source2 cites · 202467% earned
- 1446US12163631B1Solid state lighting driver and lamp replacement for avionics ballast and fluorescent lamp2 cites · 202476% earned
- 1542US11920742B1Bulb structure2 cites · 202476% earned
- 1638US11898708B1Lighting device having integrated end cap2 cites · 202476% earned
- 1733US12000547B1Edge-mount light pipe2 cites · 202476% earned
- 1829US11994261B1Color-changing LED bulb2 cites · 202476% earned
- 1925US12593393B2Self-contained ballast driver for retrofitting a lighting system with LED lights1 cites · 202439% earned
- 2021US12313244B2Wireless controllable lighting device1 cites · 202446% earned
- 2117US12007111B2Lighted architectural-structure covering3 cites · 202467% earned
- 2213US12163633B2Light-emitting device, lighting appliance, and street light2 cites · 202467% earned
- 238US12152740B1Glue sealed type waterproof lamp bulb1 cites · 202467% earned
- 244US12169063B2Strawberry lamp holder structure that can be automatically produced2 cites · 202476% earned
- 251US12209746B2Laser source tunable white light module2 cites · 202476% earned
Active· last 5 yrs
The top-scoring F21K patents of the last 5 years
- 199US11016341B2✦ AIDirectional illumination apparatus and privacy display48 cites · 202192% earned
- 296US11047538B2✦ AILED lighting apparatus with adapter bracket for a junction box46 cites · 202181% earned
- 392USD925109S✦ AILighting module46 cites · 202183% earned
- 488US11274821B2Lighting module with keyed heat sink coupled to thermally conductive trim24 cites · 202185% earned
- 583US11187387B1Color-controllable LED luminescent lamp25 cites · 202190% earned
- 679US11293599B1Multi-resistor waterproof bulb structure20 cites · 202290% earned
- 775US11293596B1Waterproof bulb structure19 cites · 202290% earned
- 871US11215327B1Bulb core column structure and bulb with the same17 cites · 202289% earned
- 967USD917089SFlexible light20 cites · 202181% earned
- 1063US11248753B1LED light bulb16 cites · 202289% earned
- 1158US11662081B2LED array with metalens for adaptive lighting19 cites · 202285% earned
- 1254US12203604B1Filament light source assembly, filament lamp string and filament bulb5 cites · 202584% earned
- 1350US11450786B2Lighting module and lighting apparatus having same12 cites · 202272% earned
- 1446US11215912B1Reflective dynamic projector and starry sky lamp12 cites · 202288% earned
- 1542US11125430B1LED light and a production method thereof14 cites · 202189% earned
- 1638US10966306B1Bridge device for connecting electronic devices16 cites · 202176% earned
- 1733US12055275B1String lamp6 cites · 202485% earned
- 1829US11047532B1LED flexible filament strip and LED flexible lamp12 cites · 202188% earned
- 1925US11262028B2LED lamp11 cites · 202168% earned
- 2021US11242958B2Light emitting diode (LED) lighting device or lamp with configurable light qualities11 cites · 202169% earned
- 2117US11248752B2Light emitting diode (LED) lighting device or lamp with configurable light qualities11 cites · 202176% earned
- 2213US11215326B2Filament lamp lighting module and manufacturing method thereof11 cites · 202188% earned
- 238US11460185B1Integrated multilayer structure containing optically functional module and related method 7 cites · 202279% earned
- 244US11460173B1LED backlight system and mounting system7 cites · 202279% earned
- 251US11662187B1Feed neck module for toy gun7 cites · 202386% earned
All-time canon
The defining F21K patents of the whole record
- 199US6211626B1✦ AIIllumination components2,210 cites · 200193% earned
- 296US6016038A✦ AIMulticolored LED lighting method and apparatus1,858 cites · 200092% earned
- 392US7213940B1✦ AILighting device and lighting method1,240 cites · 200795% earned
- 488US6166496ALighting entertainment system1,208 cites · 200091% earned
- 583US6528954B1Smart light bulb1,164 cites · 200395% earned
- 679US6150774AMulticolored LED lighting method and apparatus1,102 cites · 200091% earned
- 775US6340868B1Illumination components1,064 cites · 200293% earned
- 871US6459919B1Precision illumination methods and systems1,010 cites · 200291% earned
- 967US7038399B2Methods and apparatus for providing power to lighting devices927 cites · 200493% earned
- 1063US5806965ALED beacon light922 cites · 199895% earned
- 1158US5632551ALED vehicle lamp assembly922 cites · 199795% earned
- 1254US7014336B1Systems and methods for generating and modulating illumination conditions916 cites · 200688% earned
- 1350US5857767AThermal management system for L.E.D. arrays907 cites · 199995% earned
- 1446US6292901B1Power/data protocol878 cites · 200195% earned
- 1542US6234648B1Lighting system816 cites · 200195% earned
- 1638US5463280ALight emitting diode retrofit lamp803 cites · 199595% earned
- 1733US7178941B2Lighting methods and systems787 cites · 200592% earned
- 1829US4211955ASolid state lamp779 cites · 198095% earned
- 1925US6350041B1High output radial dispersing lamp using a solid state light source761 cites · 200295% earned
- 2021US6965205B2Light emitting diode based products732 cites · 200395% earned
- 2117US4298869ALight-emitting diode display731 cites · 198195% earned
- 2213US5890794ALighting units728 cites · 199995% earned
- 238US6788011B2Multicolored LED lighting method and apparatus683 cites · 200288% earned
- 244US6149283ALED lamp with reflector and multicolor adjuster682 cites · 200095% earned
- 251US6720745B2Data delivery track667 cites · 200192% earned
Rising· last 2 yrs
Assignees whose newest F21K patents became public in the last 2 years — the current frontier
- 199JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO LTD226 patents · 1,767 citations
- 296QUARKSTAR LLC74 patents · 293 citations
- 392DIALIGHT CORP14 patents · 756 citations
- 488SEOUL SEMICONDUCTOR CO LTD74 patents · 460 citations
- 583FEIT ELECTRIC CO INC65 patents · 434 citations
- 679SAMSUNG ELECTRONICS CO LTD147 patents · 791 citations
- 775CITIZEN ELECTRONICS46 patents · 439 citations
- 871NICHIA CORP177 patents · 299 citations
- 967OSRAM GMBH132 patents · 488 citations
- 1063INTEMATIX CORP46 patents · 336 citations
- 1158BRIDGELUX INC51 patents · 228 citations
- 1254TOSHIBA LIGHTING & TECHNOLOGY25 patents · 263 citations
- 1350LG INNOTEK CO LTD307 patents · 699 citations
- 1446EPISTAR CORP90 patents · 330 citations
- 1542ELEMENTAL LED INC12 patents · 184 citations
- 1638L&L CANDLE COMPANY LLC22 patents · 101 citations
- 1733LG ELECTRONICS INC59 patents · 205 citations
- 1829ZHEJIANG SUPER LIGHTING ELECTRIC APPLIANCE CO LTD50 patents · 145 citations
- 1925APPLE INC15 patents · 96 citations
- 2021KOITO MFG CO LTD19 patents · 155 citations
- 2117SIGNIFY HOLDING BV282 patents · 249 citations
- 2213LUMILEDS LLC98 patents · 135 citations
- 238CSC HOLDINGS LLC7 patents · 39 citations
- 244LEDVANCE LLC33 patents · 83 citations
- 251EATON INTELLIGENT POWER LTD22 patents · 58 citations
Active· last 5 yrs
Sustained F21K output across the last 5 years
- 199DISNEY ENTPR INC7 patents · 588 citations
- 296ILUMISYS INC50 patents · 981 citations
- 392CHIEN TSENG-LU77 patents · 901 citations
- 488OSRAM SYLVANIA INC54 patents · 2,080 citations
- 583JIAXING SUPER LIGHTING ELECTRIC APPLIANCE CO LTD226 patents · 1,767 citations
- 679MAY MICHAEL W31 patents · 519 citations
- 775STANLEY ELECTRIC CO LTD36 patents · 1,065 citations
- 871DMF INC11 patents · 435 citations
- 967QUARKSTAR LLC74 patents · 293 citations
- 1063OSRAM OPTO SEMICONDUCTORS GMBH55 patents · 564 citations
- 1158DIALIGHT CORP14 patents · 756 citations
- 1254SEOUL SEMICONDUCTOR CO LTD74 patents · 460 citations
- 1350FEIT ELECTRIC CO INC65 patents · 434 citations
- 1446PANASONIC CORP58 patents · 526 citations
- 1542SAMSUNG ELECTRONICS CO LTD147 patents · 791 citations
- 1638CITIZEN ELECTRONICS46 patents · 439 citations
- 1733AU OPTRONICS CORP13 patents · 317 citations
- 1829NICHIA CORP177 patents · 299 citations
- 1925OSRAM GMBH132 patents · 488 citations
- 2021INTEMATIX CORP46 patents · 336 citations
- 2117ABL IP HOLDING LLC52 patents · 396 citations
- 2213SHARP KK67 patents · 444 citations
- 238TISCHLER MICHAEL A19 patents · 165 citations
- 244BRIDGELUX INC51 patents · 228 citations
- 251TOSHIBA LIGHTING & TECHNOLOGY25 patents · 263 citations
All-time canon
All-time PatentIndex Score in F21K
- 199COLOR KINETICS INC31 patents · 21,933 citations
- 296ICU MEDICAL INC23 patents · 3,275 citations
- 392PHILIPS SOLID STATE LIGHTING20 patents · 4,737 citations
- 488ALTAIR ENG INC8 patents · 1,753 citations
- 583MATSUSHITA ELECTRIC INDUSTRIAL CO LTD18 patents · 2,726 citations
- 679911EP INC11 patents · 1,145 citations
- 775GEN ELECTRIC53 patents · 2,136 citations
- 871DISNEY ENTPR INC7 patents · 588 citations
- 967PERMLIGHT PRODUCTS INC9 patents · 945 citations
- 1063GELCORE LLC8 patents · 1,507 citations
- 1158OPTOLUM INC7 patents · 644 citations
- 1254IVEY JOHN13 patents · 1,138 citations
- 1350CREE INC255 patents · 3,702 citations
- 1446ILUMISYS INC50 patents · 981 citations
- 1542CHIEN TSENG-LU77 patents · 901 citations
- 1638KONINKL PHILIPS ELECTRONICS NV37 patents · 1,820 citations
- 1733OSRAM SYLVANIA INC54 patents · 2,080 citations
- 1829LIGHTING SCIENCE GROUP CORP54 patents · 1,358 citations
- 1925LIGHT PRESCRIPTIONS INNOVATORS11 patents · 985 citations
- 2021HEWLETT PACKARD CO5 patents · 937 citations
- 2117ADVANCED OPTICAL TECH INC6 patents · 534 citations
- 2213FU ZHUN PRECISION IND SHENZHEN67 patents · 2,095 citations
- 238LEOTEK ELECTRONICS CORP11 patents · 973 citations
- 244TOYODA GOSEI KK22 patents · 928 citations
- 251COOPER TECHNOLOGIES CO32 patents · 449 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth