Topic leaderboard
Heat-exchange apparatus without direct contact
Ranked by the PatentIndex Score — a 1–99 percentile within F28D · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F28D patents became public in the last 2 years — the current frontier
- 199William Dunn18 patents · 1,095 citations
- 296Tim Hubbard13 patents · 562 citations
- 392George Anthony Meyer, Iv16 patents · 794 citations
- 488Jon P. Hartfield14 patents · 516 citations
- 583Ralf Blomgren39 patents · 842 citations
- 679Geoff Sean Lyon12 patents · 163 citations
- 775Robert P. Scaringe14 patents · 337 citations
- 871Scott Kent16 patents · 261 citations
- 967William G. Anderson13 patents · 256 citations
- 1063Yung-Cheng Lee21 patents · 172 citations
- 1158Ronggui Yang18 patents · 144 citations
- 1254William Dwight Gerstler36 patents · 238 citations
- 1350Manfred Gerber9 patents · 146 citations
- 1446Philip Paul Lepoudre11 patents · 143 citations
- 1542Bao H. Truong15 patents · 103 citations
- 1638John Setel O'Donnell49 patents · 70 citations
- 1733Yusef Desjardins Ferhani41 patents · 61 citations
- 1829Peter Emery Von Behrens42 patents · 57 citations
- 1925Matthieu Jonemann35 patents · 55 citations
- 2021Chiaki Treynor33 patents · 54 citations
- 2117Robert Ratz34 patents · 54 citations
- 2213Henrik Stiesdal12 patents · 187 citations
- 238Daniel Jason Erno20 patents · 111 citations
- 244Timothy A. Shedd12 patents · 164 citations
- 251Brett A. Lindeman7 patents · 117 citations
Active· last 5 yrs
Sustained F28D output across the last 5 years
- 199Kenneth E. Goodson21 patents · 1,724 citations
- 296William Dunn18 patents · 1,095 citations
- 392Evelyn N. Wang10 patents · 638 citations
- 488James W. Klett17 patents · 1,080 citations
- 583Tim Hubbard13 patents · 562 citations
- 679Jon Zuo10 patents · 744 citations
- 775George Anthony Meyer, Iv16 patents · 794 citations
- 871Jon P. Hartfield14 patents · 516 citations
- 967David Bruce Sarraf15 patents · 747 citations
- 1063Levi A. Campbell59 patents · 1,727 citations
- 1158Madhusudan K. Iyengar58 patents · 1,630 citations
- 1254Philippe Larochelle16 patents · 307 citations
- 1350Uwe Rockenfeller24 patents · 939 citations
- 1446Nicholas Cizek10 patents · 194 citations
- 1542Robert B. Laughlin10 patents · 194 citations
- 1638Jerome E. Toth19 patents · 654 citations
- 1733Yuji Saito15 patents · 483 citations
- 1829Stephen Memory12 patents · 614 citations
- 1925Jason A. Demers20 patents · 357 citations
- 2021Scott Garner21 patents · 723 citations
- 2117Allan K. So15 patents · 477 citations
- 2213Mitsugu Nakamura11 patents · 500 citations
- 238Peter Dussinger13 patents · 383 citations
- 244Dmitry Khrustalev10 patents · 456 citations
- 251Scott A. Leonard16 patents · 279 citations
All-time canon
Career PatentIndex Score in F28D
- 199Robert S. Wegeng16 patents · 2,678 citations
- 296Theresa M. Buckley6 patents · 1,324 citations
- 392Lon E. Bell11 patents · 1,617 citations
- 488Maximilian A. Biberger15 patents · 500 citations
- 583David P. Colvin10 patents · 1,778 citations
- 679Yvonne G. Bryant7 patents · 1,519 citations
- 775Kenneth E. Goodson21 patents · 1,724 citations
- 871Thomas Kenny18 patents · 1,682 citations
- 967Jeremy Burdon6 patents · 1,006 citations
- 1063Rong-Fong Huang6 patents · 1,006 citations
- 1158Huinan Yu5 patents · 941 citations
- 1254Piotr Grodzinski5 patents · 941 citations
- 1350William Dunn18 patents · 1,095 citations
- 1446Anna Lee Tonkovich34 patents · 1,636 citations
- 1542Douglas B. Dority10 patents · 918 citations
- 1638Ronald Chang10 patents · 918 citations
- 1733Shulin Zeng13 patents · 848 citations
- 1829Juan G. Santiago7 patents · 727 citations
- 1925Chuan-Hua Chen6 patents · 649 citations
- 2021Evelyn N. Wang10 patents · 638 citations
- 2117David Huber5 patents · 623 citations
- 2213Daniel J. Laser5 patents · 623 citations
- 238Jae-Mo Koo5 patents · 623 citations
- 244James Mikkelsen5 patents · 623 citations
- 251Linan Jiang5 patents · 623 citations
Rising· last 2 yrs
The top-scoring F28D patents made public in the last 2 years
- 199US12241415B1✦ AIGas turbine engine heat exchange4 cites · 202570% earned
- 296US11927134B1✦ AIGas turbine engine having a heat exchanger located in an annular duct6 cites · 202485% earned
- 392US11990598B1✦ AIHeat activated multiphase fluid-operated pump for battery temperature control6 cites · 202467% earned
- 488US12158088B2Thermal energy storage system with radiation cavities2 cites · 202438% earned
- 583US11933556B1Tube bundle cleaning system and method3 cites · 202467% earned
- 679US12535278B2Heat dissipation device of heat pipe combined with vapor chamber2 cites · 202576% earned
- 775US12156376B2Two-phase immersion-type heat dissipation structure having porous structure4 cites · 202482% earned
- 871US12480719B2Thermal energy storage system for simple and combined cycle power generation1 cites · 202567% earned
- 967US11904288B1Environmentally biodegradable microcapsules3 cites · 202480% earned
- 1063US12006071B1Deployable radiator panel system4 cites · 202482% earned
- 1158US11889613B1Heatsink device with multiple inlets and related computing device and method4 cites · 202482% earned
- 1254US11965702B1Low pressure drop automotive liquid-cooling heat dissipation plate and enclosed automotive3 cites · 202480% earned
- 1350US12044478B2Heat exchanger system with machine-learning based optimization2 cites · 202458% earned
- 1446US12209813B2Heat exchanger including furcating unit cells2 cites · 202461% earned
- 1542US11940225B1Energy storage systems2 cites · 202476% earned
- 1638US11970652B1Thermal energy storage with actively tunable phase change materials2 cites · 202476% earned
- 1733US12235054B2Integrated connector and heat exchanger including the same2 cites · 202476% earned
- 1829US12188727B1Systems and methods for verification and calibration using known reference chemical soluti2 cites · 202576% earned
- 1925US11874018B1Cooling and dehumidifcation system3 cites · 202467% earned
- 2021US12339078B2System and method for maintaining efficiency of a heat sink1 cites · 202444% earned
- 2117US12516613B1Thermal energy storage system coupled with thermal power cycle systems1 cites · 202644% earned
- 2213US11982499B2Heat exchanger with heat transfer augmentation features2 cites · 202467% earned
- 238US12204385B2Method and apparatus for an ion emitter-assisted heatpipe2 cites · 202476% earned
- 244US11891942B1Vehicle cooling system with radial or mixed air flow2 cites · 202476% earned
- 251US11940226B2Thermal energy storage system with phase change material and method of its operation2 cites · 202476% earned
Active· last 5 yrs
The top-scoring F28D patents of the last 5 years
- 199US10966349B1✦ AITwo-phase immersion cooling apparatus with active vapor management71 cites · 202186% earned
- 296US11994347B2✦ AISystems for managing thermal energy within a thermal storage solution32 cites · 202286% earned
- 392US11540418B2✦ AIElectronic display with cooling28 cites · 202272% earned
- 488US11287089B1Process for fueling of vehicle tanks with compressed hydrogen comprising heat exchange of 33 cites · 202291% earned
- 583US11255576B2Closed loop energy production from producing geothermal wells45 cites · 202192% earned
- 679US11603776B2Energy storage system and applications31 cites · 202266% earned
- 775US11459944B2Ultra-high temperature thermal energy storage system36 cites · 202191% earned
- 871US11326479B2Systems and methods for the capture of heat energy, long-distance conveyance, storage, and40 cites · 202291% earned
- 967US10928075B1Floor heating system including membranes that are configured to be joined together to hous27 cites · 202183% earned
- 1063US11535360B1Hypersonic leading-edge heat pipe with porous wick, and methods of making and using the sa20 cites · 202285% earned
- 1158US11761711B1Heat storage and heat release system for molten salt with steam heating10 cites · 202387% earned
- 1254US11892242B2Multi-angle adjustable and transformable heat pipe16 cites · 202389% earned
- 1350US11396826B2Pumped heat energy storage system with electric heating integration19 cites · 202279% earned
- 1446US11209222B1Spiral heat exchanger header19 cites · 202190% earned
- 1542US11454167B1Pumped heat energy storage system with hot-side thermal integration18 cites · 202277% earned
- 1638US11480067B2Pumped heat energy storage system with generation cycle thermal integration17 cites · 202278% earned
- 1733US11273925B1Thermal management system and method for cooling a hybrid electric aircraft propulsion sys17 cites · 202289% earned
- 1829US11286804B2Pumped heat energy storage system with charge cycle thermal integration16 cites · 202278% earned
- 1925US11737240B1Heat-activated multiphase fluid-operated pump for electronics waste heat removal12 cites · 202372% earned
- 2021US11555450B1Fuel injectors with heat exchangers11 cites · 202388% earned
- 2117US11248848B1Liquid-cooling heat dissipation apparatus11 cites · 202288% earned
- 2213US11322426B2Thermal management of RF devices using embedded microjet arrays13 cites · 202179% earned
- 238US11317543B1High power density based two phase system design13 cites · 202288% earned
- 244US10966354B1Liquid cooling module13 cites · 202188% earned
- 251US10923788B1Directed quench systems and components19 cites · 202185% earned
All-time canon
The defining F28D patents of the whole record
- 199US6595929B2✦ AISystem for monitoring health, wellness and fitness having a method and apparatus for impro858 cites · 200295% earned
- 296US9313915B2✦ AIElectronic device804 cites · 201495% earned
- 392US5560362A✦ AIActive thermal control of ultrasound transducers682 cites · 199695% earned
- 488US8706914B2Computing infrastructure663 cites · 200989% earned
- 583US6499533B2Cooling disk unit for use in a wafer chucking device547 cites · 200195% earned
- 679US5811062AMicrocomponent chemical process sheet architecture539 cites · 199895% earned
- 775US5534328AIntegrated chemical processing apparatus and processes for the preparation thereof529 cites · 199695% earned
- 871US6230501B1Ergonomic systems and methods providing intelligent adaptive surfaces and temperature cont522 cites · 200192% earned
- 967US8933375B2Susceptor heater and method of heating a substrate517 cites · 201492% earned
- 1063US9299595B2Susceptor heater and method of heating a substrate506 cites · 201592% earned
- 1158US6019165AHeat exchange apparatus434 cites · 200095% earned
- 1254US6166907ACPU cooling system406 cites · 200095% earned
- 1350US4921041AStructure of a heat pipe393 cites · 199095% earned
- 1446US5756227ABattery assembly with temperature control mechanism387 cites · 199895% earned
- 1542US3952802AMethod and apparatus for in situ gasification of coal and the commercial products derived 376 cites · 197694% earned
- 1638US6572830B1Integrated multilayered microfludic devices and methods for making the same370 cites · 200387% earned
- 1733US6082443ACooling device with heat pipe366 cites · 200094% earned
- 1829US6200536B1Active microchannel heat exchanger366 cites · 200194% earned
- 1925US4964402AOrthopedic device having gel pad with phase change material365 cites · 199094% earned
- 2021US6293121B1Water-mist blower cooling system and its new applications359 cites · 200194% earned
- 2117US4516632AMicrochannel crossflow fluid heat exchanger and method for its fabrication342 cites · 198594% earned
- 2213US5611214AMicrocomponent sheet architecture338 cites · 199794% earned
- 238US6369893B1Multi-channel optical detection system331 cites · 200291% earned
- 244US5722482APhase change thermal control materials, method and apparatus329 cites · 199889% earned
- 251US6544734B1Multilayered microfluidic DNA analysis system and method322 cites · 200387% earned
Rising· last 2 yrs
Assignees whose newest F28D patents became public in the last 2 years — the current frontier
- 199FURUKAWA ELECTRIC CO LTD88 patents · 2,189 citations
- 296GEN ELECTRIC245 patents · 5,044 citations
- 392DENSO CORP377 patents · 7,395 citations
- 488IBM154 patents · 4,104 citations
- 583MODINE MFG CO252 patents · 5,856 citations
- 679MRI INC14 patents · 693 citations
- 775INTEL CORP106 patents · 2,802 citations
- 871TOSHIBA KK73 patents · 2,034 citations
- 967BALTIMORE AIRCOIL CO INC55 patents · 1,438 citations
- 1063MASSACHUSETTS INST TECHNOLOGY27 patents · 633 citations
- 1158HONDA MOTOR CO LTD76 patents · 1,435 citations
- 1254MITSUBISHI ELECTRIC CORP238 patents · 2,203 citations
- 1350BOEING CO99 patents · 1,563 citations
- 1446MALTA INC30 patents · 360 citations
- 1542RAYTHEON CO39 patents · 621 citations
- 1638APPLIED MATERIALS INC18 patents · 394 citations
- 1733ROLLS ROYCE PLC37 patents · 631 citations
- 1829CARRIER CORP166 patents · 1,805 citations
- 1925LG ELECTRONICS INC147 patents · 902 citations
- 2021MITSUBISHI HEAVY IND LTD58 patents · 652 citations
- 2117KOBE STEEL LTD49 patents · 648 citations
- 2213IND TECH RES INST24 patents · 434 citations
- 238HONEYWELL INT INC78 patents · 1,022 citations
- 244DELL PRODUCTS LP25 patents · 407 citations
- 251AIR LIQUIDE69 patents · 718 citations
Active· last 5 yrs
Sustained F28D output across the last 5 years
- 199BATTELLE MEMORIAL INSTITUTE38 patents · 3,923 citations
- 296FURUKAWA ELECTRIC CO LTD88 patents · 2,189 citations
- 392GEN ELECTRIC245 patents · 5,044 citations
- 488THERMAL CORP75 patents · 3,380 citations
- 583DENSO CORP377 patents · 7,395 citations
- 679IBM154 patents · 4,104 citations
- 775MODINE MFG CO252 patents · 5,856 citations
- 871MRI INC14 patents · 693 citations
- 967INTEL CORP106 patents · 2,802 citations
- 1063TOSHIBA KK73 patents · 2,034 citations
- 1158ROCKY RESEARCH22 patents · 1,134 citations
- 1254UNITED TECHNOLOGIES CORP70 patents · 1,320 citations
- 1350BALTIMORE AIRCOIL CO INC55 patents · 1,438 citations
- 1446MASSACHUSETTS INST TECHNOLOGY27 patents · 633 citations
- 1542FUJITSU LTD66 patents · 1,250 citations
- 1638UT BATTELLE LLC24 patents · 632 citations
- 1733HONDA MOTOR CO LTD76 patents · 1,435 citations
- 1829MITSUBISHI ELECTRIC CORP238 patents · 2,203 citations
- 1925UOP LLC43 patents · 946 citations
- 2021BOEING CO99 patents · 1,563 citations
- 2117SANDEN CORP73 patents · 2,366 citations
- 2213FUJIKURA LTD28 patents · 801 citations
- 238SANDIA CORP7 patents · 456 citations
- 244MALTA INC30 patents · 360 citations
- 251AIR PROD & CHEM27 patents · 760 citations
All-time canon
All-time PatentIndex Score in F28D
- 199BATTELLE MEMORIAL INSTITUTE38 patents · 3,923 citations
- 296UNIV LELAND STANFORD JUNIOR8 patents · 1,116 citations
- 392SDCMATERIALS INC10 patents · 375 citations
- 488FURUKAWA ELECTRIC CO LTD88 patents · 2,189 citations
- 583GEN ELECTRIC245 patents · 5,044 citations
- 679CEPHEID8 patents · 909 citations
- 775THERMAL CORP75 patents · 3,380 citations
- 871OUTLAST TECHNOLOGIES INC16 patents · 1,473 citations
- 967US ENERGY41 patents · 1,966 citations
- 1063SUN MICROSYSTEMS INC21 patents · 1,579 citations
- 1158AAVID LAB INC9 patents · 1,137 citations
- 1254DENSO CORP377 patents · 7,395 citations
- 1350IBM154 patents · 4,104 citations
- 1446COOLIGY INC19 patents · 1,362 citations
- 1542TRIANGLE RES & DEV CORP6 patents · 911 citations
- 1638BSST LLC6 patents · 826 citations
- 1733MODINE MFG CO252 patents · 5,856 citations
- 1829MOTOROLA INC16 patents · 1,060 citations
- 1925US AIR FORCE33 patents · 2,032 citations
- 2021HUGHES AIRCRAFT CO35 patents · 1,922 citations
- 2117THERMOTEK INC19 patents · 928 citations
- 2213MRI INC14 patents · 693 citations
- 238THERMACORE INC29 patents · 1,756 citations
- 244INTEL CORP106 patents · 2,802 citations
- 251HITACHI LTD83 patents · 2,715 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth