Topic leaderboard
Magnets, inductances & transformers
Ranked by the PatentIndex Score — a 1–99 percentile within H01F · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest H01F patents became public in the last 2 years — the current frontier
- 199Aristeidis Karalis62 patents · 7,264 citations
- 296Anthony K. Mcgrogan22 patents · 2,445 citations
- 392Craig R. Ramstad22 patents · 2,445 citations
- 488Afshin Partovi41 patents · 3,442 citations
- 583Morris P. Kesler79 patents · 4,795 citations
- 679Andre B. Kurs61 patents · 3,495 citations
- 775Eugene F. Duval20 patents · 998 citations
- 871Daniel H. Gomez19 patents · 975 citations
- 967Thomas G. Cooper19 patents · 975 citations
- 1063Andrew J. Campanella34 patents · 2,804 citations
- 1158Vinit Singh69 patents · 2,399 citations
- 1254Christine A. Frysz56 patents · 2,350 citations
- 1350Jacob Babcock46 patents · 1,633 citations
- 1446Jeffrey D. Brown16 patents · 903 citations
- 1542Patrizio Vinciarelli44 patents · 1,922 citations
- 1638Francis M. Creighton22 patents · 1,269 citations
- 1733Tero Tapio Ranta24 patents · 511 citations
- 1829Masatoshi Yoshikawa42 patents · 1,596 citations
- 1925Hideaki Fukuzawa72 patents · 1,855 citations
- 2021Robert W. Greene12 patents · 285 citations
- 2117Shawn Bawell12 patents · 285 citations
- 2213Christopher N. Brindle11 patents · 266 citations
- 238Robert Mark Englekirk11 patents · 266 citations
- 244Ionel Jitaru34 patents · 834 citations
- 251Yuankai Zheng38 patents · 706 citations
Active· last 5 yrs
Sustained H01F output across the last 5 years
- 199Aristeidis Karalis62 patents · 7,264 citations
- 296Marin Soljacic46 patents · 6,921 citations
- 392John D. Joannopoulos25 patents · 4,355 citations
- 488David W. Baarman59 patents · 6,141 citations
- 583Anthony K. Mcgrogan22 patents · 2,445 citations
- 679Craig R. Ramstad22 patents · 2,445 citations
- 775Bruce M. Burg10 patents · 2,104 citations
- 871Afshin Partovi41 patents · 3,442 citations
- 967Morris P. Kesler79 patents · 4,795 citations
- 1063Katherine L. Hall63 patents · 4,581 citations
- 1158Andre B. Kurs61 patents · 3,495 citations
- 1254Eugene F. Duval20 patents · 998 citations
- 1350Daniel H. Gomez19 patents · 975 citations
- 1446Thomas G. Cooper19 patents · 975 citations
- 1542Jonathan M. Rothberg23 patents · 1,390 citations
- 1638Michael Stephen Poole25 patents · 1,100 citations
- 1733Todd Rearick22 patents · 1,273 citations
- 1829Gregory L. Charvat19 patents · 1,098 citations
- 1925Andrew J. Campanella34 patents · 2,804 citations
- 2021Vinit Singh69 patents · 2,399 citations
- 2117Christine A. Frysz56 patents · 2,350 citations
- 2213Jacob Babcock46 patents · 1,633 citations
- 238Yiming Huai66 patents · 4,578 citations
- 244Matthew Scot Rosen12 patents · 854 citations
- 251Jeffrey D. Brown16 patents · 903 citations
All-time canon
Career PatentIndex Score in H01F
- 199Aristeidis Karalis62 patents · 7,264 citations
- 296Marin Soljacic46 patents · 6,921 citations
- 392John D. Joannopoulos25 patents · 4,355 citations
- 488Bradley A. Jascob8 patents · 3,611 citations
- 583John H. Dukesherer7 patents · 3,195 citations
- 679David W. Baarman59 patents · 6,141 citations
- 775Anthony K. Mcgrogan22 patents · 2,445 citations
- 871Craig R. Ramstad22 patents · 2,445 citations
- 967Bruce M. Burg10 patents · 2,104 citations
- 1063Paul Kessman5 patents · 2,069 citations
- 1158Alan Patrick Anderson7 patents · 2,856 citations
- 1254John Stuart Bladen7 patents · 2,856 citations
- 1350Tapesh Yadav42 patents · 3,795 citations
- 1446Isy Goldwasser18 patents · 2,593 citations
- 1542Ming Au12 patents · 1,522 citations
- 1638Bijan Miremadi13 patents · 1,518 citations
- 1733Evan Franke11 patents · 1,415 citations
- 1829Afshin Partovi41 patents · 3,442 citations
- 1925Morris P. Kesler79 patents · 4,795 citations
- 2021Katherine L. Hall63 patents · 4,581 citations
- 2117Peter G. Schultz15 patents · 1,976 citations
- 2213Xiaodong Xiang11 patents · 1,871 citations
- 238John H. Alexander9 patents · 1,172 citations
- 244James Westwood Hay7 patents · 2,426 citations
- 251Pilgrim Giles William Beart7 patents · 2,426 citations
Rising· last 2 yrs
The top-scoring H01F patents made public in the last 2 years
- 199US12085421B2✦ AIOptical-path folding-element with an extended two degree of freedom rotation range25 cites · 202472% earned
- 296US12100520B2✦ AIPlanar coil stellarator5 cites · 202469% earned
- 392US12119174B1✦ AIMagnetic plate(s)5 cites · 202477% earned
- 488US11989362B1Inductance coil of a capacitance module6 cites · 202478% earned
- 583US12418141B1Magnetic connector structure for data cable2 cites · 202576% earned
- 679US12516396B2Non-oriented electrical steel and a method of manufacturing non-oriented electrical steel 2 cites · 202576% earned
- 775US12040115B1Magnetoresistance effect element5 cites · 202477% earned
- 871US12096878B1Straw cup4 cites · 202482% earned
- 967US12279405B2Magnetic field shielding sheet and manufacturing method therefor5 cites · 202484% earned
- 1063US12100538B2Method for forming a magnetoelectric nanocomposite3 cites · 202459% earned
- 1158US11955782B1System and method for fracturing of underground formations using electric grid power4 cites · 202464% earned
- 1254US12288635B2Wireless charging system with a switchable magnetic core2 cites · 202467% earned
- 1350US12405636B2Electronic device comprising hall sensor for identifying folding state2 cites · 202467% earned
- 1446US12318843B2Method for heat treating an object containing at least one rare-earth element with a high 2 cites · 202467% earned
- 1542US12237677B2Power-electronic device comprising a transformer unit and method2 cites · 202467% earned
- 1638US12317921B2Cigar holder2 cites · 202467% earned
- 1733US11903467B1Mobile device case and mount with magnetic lock4 cites · 202482% earned
- 1829US12039114B1Mouse device including a magnetic ratchet3 cites · 202480% earned
- 1925US12471722B2Suction cup holder2 cites · 202476% earned
- 2021US12347615B1Side firearm magnet mount and method of securely holding firearm and preventing accidental2 cites · 202576% earned
- 2117US12233513B2Magnetic coupling device with at least one of a sensor arrangement and a degauss capabilit2 cites · 202453% earned
- 2213US12217775B2Magnetoresistance effect element and Heusler alloy2 cites · 202458% earned
- 238US12095279B2Soft magnetic ring for wireless power devices2 cites · 202467% earned
- 244US12394991B2Systems and circuits for connecting components of a hydrogen plant to a power source2 cites · 202467% earned
- 251US12409380B2Mobile phone control handle assembly2 cites · 202476% earned
Active· last 5 yrs
The top-scoring H01F patents of the last 5 years
- 199US12085421B2✦ AIOptical-path folding-element with an extended two degree of freedom rotation range25 cites · 202472% earned
- 296US11804767B2✦ AIMagnetic coupling element with a magnetic bearing function29 cites · 202286% earned
- 392US11532323B1✦ AIBiSbX (012) layers having increased operating temperatures for SOT and MRAM devices21 cites · 202285% earned
- 488US11207540B2Electromagnetic coil assembly29 cites · 202191% earned
- 583US11527344B2Magnetic attraction connection structure20 cites · 202290% earned
- 679US10903729B1Manufacturing coils for an axial flux rotating electrical machine23 cites · 202175% earned
- 775US11021069B1Multisource magnetic integration using a current source fed transformer structure with dec22 cites · 202190% earned
- 871US11569015B2Corrosion-resistant permanent magnet and intravascular blood pump comprising the magnet25 cites · 202186% earned
- 967US11735962B2Methods and circuitry for mitigating saturation in wireless power systems17 cites · 202278% earned
- 1063US11048344B1Combining electropermanent magnets and magnetorheological fluid to control an operation of19 cites · 202190% earned
- 1158US11458410B2All dimensions free connection magnetic building block19 cites · 202190% earned
- 1254US11612160B2Valve control system and method14 cites · 202183% earned
- 1350US12009111B2Planar coil stellarator8 cites · 202373% earned
- 1446US12031669B2Interlocking magnetic device mount with foldable ring stand13 cites · 202283% earned
- 1542US11648693B2Personal care product docking system13 cites · 202283% earned
- 1638US12100966B2Biplane wireless power transfer pad13 cites · 202288% earned
- 1733US11413521B2Programmable actuation force input for an accessory and methods thereof15 cites · 202161% earned
- 1829US11511396B2Magnetic coupling devices15 cites · 202174% earned
- 1925US11548451B2Mobile device mounting system15 cites · 202180% earned
- 2021US12119174B1Magnetic plate(s)5 cites · 202477% earned
- 2117US11462945B2Zero-crossing amplitude shift keying demodulation15 cites · 202183% earned
- 2213US11578580B2Electric powered hydraulic fracturing pump system with single electric powered multi-plung12 cites · 202279% earned
- 238US11611239B2Wireless charging system with solenoids12 cites · 202279% earned
- 244US11088200B1Lattice matched seed layer to improve PMA for perpendicular magnetic pinning14 cites · 202189% earned
- 251US11005034B1Magnetoresistive memory device including a high dielectric constant capping layer and meth16 cites · 202189% earned
All-time canon
The defining H01F patents of the whole record
- 199US9096033B2✦ AISurgical system instrument sterile adapter1,467 cites · 201182% earned
- 296US6484118B1✦ AIElectromagnetic position single axis system1,291 cites · 200295% earned
- 392US4652820A✦ AICombined position sensor and magnetic motor or bearing1,248 cites · 198795% earned
- 488US7091412B2Magnetically shielded assembly1,134 cites · 200495% earned
- 583US7741734B2Wireless non-radiative energy transfer1,034 cites · 200780% earned
- 679US8411500B2Magnetic device with optimized heat confinement1,020 cites · 201295% earned
- 775US8258745B2Surgical sterilizer with integrated battery charging device1,017 cites · 201293% earned
- 871US5913820APosition location system1,000 cites · 199988% earned
- 967US6803744B1Alignment independent and self aligning inductive power transfer system969 cites · 200495% earned
- 1063US7174202B2Medical navigation apparatus928 cites · 200388% earned
- 1158US4452773AMagnetic iron-dextran microspheres915 cites · 198495% earned
- 1254US7366562B2Method and apparatus for surgical navigation832 cites · 200587% earned
- 1350US6266551B1Catheter calibration and usage monitoring system807 cites · 200195% earned
- 1446US7751865B2Method and apparatus for surgical navigation763 cites · 200586% earned
- 1542US5821731AConnection system and connection method for an electric automotive vehicle755 cites · 199895% earned
- 1638US6241921B1Heterogeneous display elements and methods for their fabrication747 cites · 200195% earned
- 1733US5873835AIntravascular pressure and flow sensor711 cites · 199995% earned
- 1829US5550452AInduction charging apparatus690 cites · 199695% earned
- 1925US7952322B2Inductive power source and charging system676 cites · 200789% earned
- 2021US5985356ACombinatorial synthesis of novel materials652 cites · 199983% earned
- 2117US6960968B2Planar resonator for wireless power transfer647 cites · 200495% earned
- 2213US5425367ACatheter depth, position and orientation location system639 cites · 199595% earned
- 238US6906495B2Contact-less power transfer617 cites · 200395% earned
- 244US8169185B2System and method for inductive charging of portable devices606 cites · 200987% earned
- 251US5695864AElectronic device using magnetic components601 cites · 199795% earned
Rising· last 2 yrs
Assignees whose newest H01F patents became public in the last 2 years — the current frontier
- 199MASSACHUSETTS INST TECHNOLOGY79 patents · 4,096 citations
- 296IBM556 patents · 16,169 citations
- 392NUCURRENT INC115 patents · 1,774 citations
- 488MOJO MOBILITY INC35 patents · 2,161 citations
- 583TOSHIBA KK553 patents · 11,633 citations
- 679UNIV CITY HONG KONG21 patents · 1,681 citations
- 775MICRON TECHNOLOGY INC110 patents · 2,319 citations
- 871APPLIED MATERIALS INC77 patents · 3,386 citations
- 967WITRICITY CORP100 patents · 1,617 citations
- 1063HITACHI LTD386 patents · 5,884 citations
- 1158GEN ELECTRIC659 patents · 14,281 citations
- 1254COMMISSARIAT ENERGIE ATOMIQUE80 patents · 1,526 citations
- 1350MURATA MANUFACTURING CO1,606 patents · 8,840 citations
- 1446MITSUBISHI ELECTRIC CORP402 patents · 4,419 citations
- 1542CANON KK99 patents · 1,475 citations
- 1638INTUITIVE SURGICAL OPERATIONS22 patents · 306 citations
- 1733QUALCOMM INC206 patents · 1,687 citations
- 1829TDK CORP1,444 patents · 9,769 citations
- 1925TEXAS INSTRUMENTS INC148 patents · 1,346 citations
- 2021US NAVY90 patents · 1,668 citations
- 2117SEAGATE TECHNOLOGY LLC106 patents · 1,556 citations
- 2213CATERPILLAR INC47 patents · 1,317 citations
- 238SONY CORP267 patents · 3,199 citations
- 244SIEMENS AG364 patents · 4,002 citations
- 251APPLE INC291 patents · 1,840 citations
Active· last 5 yrs
Sustained H01F output across the last 5 years
- 199MEDTRONIC NAVIGATION INC14 patents · 2,558 citations
- 296MASSACHUSETTS INST TECHNOLOGY79 patents · 4,096 citations
- 392IBM556 patents · 16,169 citations
- 488NUCURRENT INC115 patents · 1,774 citations
- 583MOJO MOBILITY INC35 patents · 2,161 citations
- 679TOSHIBA KK553 patents · 11,633 citations
- 775UNIV CALIFORNIA57 patents · 2,137 citations
- 871XEROX CORP71 patents · 2,841 citations
- 967UNIV CITY HONG KONG21 patents · 1,681 citations
- 1063LORD CORP25 patents · 2,542 citations
- 1158MEDTRONIC INC34 patents · 1,280 citations
- 1254VLT INC22 patents · 1,316 citations
- 1350MICRON TECHNOLOGY INC110 patents · 2,319 citations
- 1446APPLIED MATERIALS INC77 patents · 3,386 citations
- 1542WITRICITY CORP100 patents · 1,617 citations
- 1638HITACHI LTD386 patents · 5,884 citations
- 1733GEN ELECTRIC659 patents · 14,281 citations
- 1829COMMISSARIAT ENERGIE ATOMIQUE80 patents · 1,526 citations
- 1925ANALOG DEVICES INC40 patents · 958 citations
- 2021MURATA MANUFACTURING CO1,606 patents · 8,840 citations
- 2117MITSUBISHI ELECTRIC CORP402 patents · 4,419 citations
- 2213CANON KK99 patents · 1,475 citations
- 238INTUITIVE SURGICAL OPERATIONS22 patents · 306 citations
- 244SUMITOMO WIRING SYSTEMS19 patents · 1,316 citations
- 251QUALCOMM INC206 patents · 1,687 citations
All-time canon
All-time PatentIndex Score in H01F
- 199JOANNOPOULOS JOHN D17 patents · 3,011 citations
- 296MEDTRONIC NAVIGATION INC14 patents · 2,558 citations
- 392ACCESS BUSINESS GROUP INT LLC51 patents · 6,402 citations
- 488MASSACHUSETTS INST TECHNOLOGY79 patents · 4,096 citations
- 583BRITISH TELECOMM6 patents · 2,782 citations
- 679IBM556 patents · 16,169 citations
- 775NANOSET LLC16 patents · 3,491 citations
- 871HYPERFINE RES INC22 patents · 1,518 citations
- 967GRANDIS INC27 patents · 4,070 citations
- 1063NUCURRENT INC115 patents · 1,774 citations
- 1158NANOPRODUCTS CORP28 patents · 2,444 citations
- 1254MOJO MOBILITY INC35 patents · 2,161 citations
- 1350SYMYX TECHNOLOGIES INC10 patents · 1,390 citations
- 1446TOSHIBA KK553 patents · 11,633 citations
- 1542PARTOVI AFSHIN7 patents · 1,281 citations
- 1638BROADCOM CORP71 patents · 2,377 citations
- 1733BIOSENSE INC5 patents · 2,801 citations
- 1829IMMUNIVEST CORP9 patents · 1,890 citations
- 1925UNIV CALIFORNIA57 patents · 2,137 citations
- 2021XEROX CORP71 patents · 2,841 citations
- 2117CEDAR RIDGE RESEARCH LLC54 patents · 2,057 citations
- 2213UNIV CITY HONG KONG21 patents · 1,681 citations
- 238LORD CORP25 patents · 2,542 citations
- 244SINGH VINIT5 patents · 563 citations
- 251MEDTRONIC INC34 patents · 1,280 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth