Topic leaderboard
Domestic or space-heating systems
Ranked by the PatentIndex Score — a 1–99 percentile within F24D · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F24D patents became public in the last 2 years — the current frontier
- 199Sivaprasad Akasam39 patents · 240 citations
- 296Sridhar Deivasigamani39 patents · 240 citations
- 392Simon Downie35 patents · 98 citations
- 488Jozef Boros7 patents · 102 citations
- 583Jason M. Sachs8 patents · 144 citations
- 679Stewart Kaiser8 patents · 32 citations
- 775Kashem Pathan14 patents · 29 citations
- 871David Sweet6 patents · 33 citations
- 967Shogo Tamaki10 patents · 42 citations
- 1063David F. Dyer4 patents · 87 citations
- 1158Mudasir Ahmad6 patents · 21 citations
- 1254Kenneth Szekely6 patents · 41 citations
- 1350Annette Haid5 patents · 33 citations
- 1446Gregor Matjan5 patents · 33 citations
- 1542Julian Herget5 patents · 33 citations
- 1638Markus Klein5 patents · 33 citations
- 1733Romana Sigl5 patents · 33 citations
- 1829Stephan Lintner5 patents · 33 citations
- 1925Stan Maes5 patents · 33 citations
- 2021Ulrich Kastner-Jung5 patents · 33 citations
- 2117Grant Stepa5 patents · 11 citations
- 2213Peter Kerr5 patents · 11 citations
- 238Piyush Porwal8 patents · 16 citations
- 244Christopher M. Hayden11 patents · 9 citations
- 251Joe A. Akin3 patents · 37 citations
Active· last 5 yrs
Sustained F24D output across the last 5 years
- 199Jeffrey A. Riblet7 patents · 535 citations
- 296Melinda Teresa Magerkurth7 patents · 535 citations
- 392David D. Larson15 patents · 289 citations
- 488Richard C. Bourne6 patents · 412 citations
- 583Sivaprasad Akasam39 patents · 240 citations
- 679Sridhar Deivasigamani39 patents · 240 citations
- 775Preston Gilmer10 patents · 137 citations
- 871Simon Downie35 patents · 98 citations
- 967Charles P. Medlock6 patents · 45 citations
- 1063Christopher P. Medlock6 patents · 45 citations
- 1158Jonathan A. Brock6 patents · 45 citations
- 1254Albert Reid Wallace8 patents · 55 citations
- 1350Martin Adamek7 patents · 97 citations
- 1446Michael Mcnamara9 patents · 61 citations
- 1542Jozef Boros7 patents · 102 citations
- 1638James E. Flaherty5 patents · 40 citations
- 1733Nathaniel Kraft5 patents · 40 citations
- 1829Eric R. Jurczyszak13 patents · 44 citations
- 1925Hans L. Kuster7 patents · 56 citations
- 2021Jason M. Sachs8 patents · 144 citations
- 2117Daniel Becvar6 patents · 106 citations
- 2213Timothy B. Hawkins7 patents · 28 citations
- 238Raheel A. Chaudhry17 patents · 51 citations
- 244Jeremy L. Babb7 patents · 28 citations
- 251Peter Anderson8 patents · 32 citations
All-time canon
Career PatentIndex Score in F24D
- 199Jeffrey A. Riblet7 patents · 535 citations
- 296Melinda Teresa Magerkurth7 patents · 535 citations
- 392Anthony M. Fadell32 patents · 787 citations
- 488Matthew Lee Rogers25 patents · 535 citations
- 583Daniel Adam Warren25 patents · 551 citations
- 679David Sloo12 patents · 295 citations
- 775David Wallance5 patents · 393 citations
- 871Joachim Fiedrich21 patents · 952 citations
- 967William J. Lund6 patents · 460 citations
- 1063Yoky Matsuoka9 patents · 190 citations
- 1158David D. Larson15 patents · 289 citations
- 1254Richard D. Jones5 patents · 454 citations
- 1350Edwin H. Satterthwaite, Jr.10 patents · 239 citations
- 1446Richard C. Bourne6 patents · 412 citations
- 1542Joseph E. Palmer8 patents · 215 citations
- 1638Ian C. Smith11 patents · 261 citations
- 1733Dale Kempf10 patents · 192 citations
- 1829Ken Lum10 patents · 192 citations
- 1925Joseph Gerstmann6 patents · 304 citations
- 2021John Benjamin Filson5 patents · 163 citations
- 2117Paul F. Swenson10 patents · 340 citations
- 2213Karsten Laing14 patents · 383 citations
- 238Eric M. Lannes6 patents · 289 citations
- 244John C. Karamanos5 patents · 180 citations
- 251Charles G. Miller5 patents · 130 citations
Rising· last 2 yrs
The top-scoring F24D patents made public in the last 2 years
- 199US11990598B1✦ AIHeat activated multiphase fluid-operated pump for battery temperature control6 cites · 202467% earned
- 296US12508932B1✦ AIBuilding/facility power cool heat and electric vehicle fast charging system1 cites · 202567% earned
- 392US12405032B1✦ AIOptimal operation control method of air-source heat pump and gas-fired heater combined hea1 cites · 202567% earned
- 488US11920830B1Tool and method for cleaning and draining a water heater2 cites · 202467% earned
- 583US12234998B1Tamper-resistant baseboard heater cover assembly2 cites · 202567% earned
- 679US12264847B2Multi-split type air-conditioning device and connection determination method2 cites · 202476% earned
- 775US12308696B2Back-up generator and associated electric power systems1 cites · 202446% earned
- 871US12283843B2Back-up generator and associated electric power systems1 cites · 202456% earned
- 967US12326279B2Water to air switching flow heater chiller1 cites · 202467% earned
- 1063US11974412B2System and method for using waste heat generated by digital processing components1 cites · 202467% earned
- 1158US12163692B1HVAC apparatus, method, and system1 cites · 202450% earned
- 1254US12203566B2Isolation service valve assembly for motorized zone valves1 cites · 202467% earned
- 1350US11988412B2Methods and systems for modulating energy usage1 cites · 202467% earned
- 1446US12117205B2Methods and systems and apparatus to support reduced energy and water usage1 cites · 202467% earned
- 1542US12540737B2System for producing heat for domestic hot water or central heating1 cites · 202467% earned
- 1638US12222167B2Arrangement and a method for storing thermal energy in the ground1 cites · 202467% earned
- 1733US12422148B1Water heater system1 cites · 202567% earned
- 1829US12405067B2Multipurpose multi-source heat-storing compressed air energy storage system and method of 1 cites · 202467% earned
- 1925US12324063B2Method for producing a heat module1 cites · 202467% earned
- 2021US12158250B2Organic-light emitting diode0 cites · 20240% earned
- 2117US12352230B2Direct current power plant0 cites · 20240% earned
- 2213US12345424B2System, apparatus and method for efficient use of solar photovoltaic energy0 cites · 20240% earned
- 238US12145158B2Magnetic filter0 cites · 20240% earned
- 244US12123656B2Methods and systems and apparatus to support reduced energy and water usage0 cites · 20240% earned
- 251US12173929B2On-demand heat pump water heater0 cites · 20240% earned
Active· last 5 yrs
The top-scoring F24D patents of the last 5 years
- 199US11118812B1✦ AIAutomated water heater flushing and monitoring system100 cites · 202181% earned
- 296US11809153B1✦ AISystem for optimizing thermal energy generation from multiple energy sources34 cites · 202387% earned
- 392US11274660B2✦ AISystems and methods for the capture of heat energy, long-distance conveyance, storage, and40 cites · 202191% earned
- 488US11326479B2Systems and methods for the capture of heat energy, long-distance conveyance, storage, and40 cites · 202291% earned
- 583US10928075B1Floor heating system including membranes that are configured to be joined together to hous27 cites · 202183% earned
- 679US11052169B1Systems, apparatus and methods for purifying air26 cites · 202186% earned
- 775US11761711B1Heat storage and heat release system for molten salt with steam heating10 cites · 202387% earned
- 871US11852147B2Multifunctional pump assembly10 cites · 202387% earned
- 967US11737240B1Heat-activated multiphase fluid-operated pump for electronics waste heat removal12 cites · 202372% earned
- 1063US11193691B1Controller for heating system diagnostics and operation13 cites · 202188% earned
- 1158US11295629B1Faucet comprising integrated detection mechanisms and methods of making and using the same8 cites · 202286% earned
- 1254US11287144B2Water heaters with real-time hot water supply determination9 cites · 202181% earned
- 1350US11133757B2System and method for combined heat and electric power generation6 cites · 202178% earned
- 1446US11466870B1Combined heat, power, water and waste system6 cites · 202285% earned
- 1542US11713890B2Method of operating a heating and cooling system5 cites · 202163% earned
- 1638US11778958B2Multi-source heat exchange system employing a ground-energy storage system for controlled 5 cites · 202272% earned
- 1733US11944204B2Bedding climate control apparatus and method to operate thereof that creates a heat transf3 cites · 202380% earned
- 1829US10969119B1Hybrid photovoltaic device and radiant heating and cooling device with thermal storage6 cites · 202185% earned
- 1925US12508932B1Building/facility power cool heat and electric vehicle fast charging system1 cites · 202567% earned
- 2021US12405032B1Optimal operation control method of air-source heat pump and gas-fired heater combined hea1 cites · 202567% earned
- 2117US10982862B1System and method for heat and energy recovery and regeneration7 cites · 202179% earned
- 2213US11927930B2Controlling heat outtake from a heat distribution system6 cites · 202185% earned
- 238US11293667B2Real-time heated water supply measurement systems for water heaters and methods thereto5 cites · 202177% earned
- 244US11655996B2Air to air heat pump with heat recovery function and exhaust air humidity for heating vent4 cites · 202282% earned
- 251US12044016B2Uncoupling mat with heating elements3 cites · 202259% earned
All-time canon
The defining F24D patents of the whole record
- 199US6868293B1✦ AISystem and method for energy usage curtailment528 cites · 200595% earned
- 296US6286764B1✦ AIFluid and gas supply system422 cites · 200195% earned
- 392US6213404B1✦ AIRemote temperature sensing transmitting and programmable thermostat system288 cites · 200194% earned
- 488US6196467B1Wireless programming or programmable thermostat mobile unit for multiple separate controll246 cites · 200191% earned
- 583US5329991APre-programmed electronic programmable thermostat241 cites · 199494% earned
- 679US5244146AEnergy-conserving thermostat and method239 cites · 199391% earned
- 775US4733057ASheet heater236 cites · 198894% earned
- 871US5985474AIntegrated full processor, furnace, and fuel cell system for providing heat and electrical223 cites · 199994% earned
- 967US5761908AApparatus suited for ventilating rooms contaminated with infectious disease organisms219 cites · 199894% earned
- 1063US5259445AControl for dual heating system including a heat pump and furnace218 cites · 199394% earned
- 1158US5056712AWater heater controller213 cites · 199194% earned
- 1254US4887438ADesiccant assisted air conditioner213 cites · 198994% earned
- 1350US5598682APipe retaining clip and method for installing radiant heat flooring213 cites · 199794% earned
- 1446US6065946AIntegrated controller pump212 cites · 200094% earned
- 1542US7827738B2System for modular building construction207 cites · 200885% earned
- 1638US4909435AHot water supply system196 cites · 199094% earned
- 1733US5956462ADomestic electric energy control193 cites · 199994% earned
- 1829US6199388B1System and method for controlling temperature and humidity192 cites · 200194% earned
- 1925US4259401AMethods, apparatus, and compositions for storing heat for the heating and cooling of build189 cites · 198194% earned
- 2021US4909041AResidential heating, cooling and energy management system187 cites · 199094% earned
- 2117US4971136ADual fuel heat pump controller184 cites · 199094% earned
- 2213US5058804AAutomatic hot water supply apparatus182 cites · 199194% earned
- 238US4896658AHot water supply system178 cites · 199094% earned
- 244US4375831AGeothermal storage heating and cooling system178 cites · 198394% earned
- 251US4420947AHeat pump air conditioning system177 cites · 198394% earned
Rising· last 2 yrs
Assignees whose newest F24D patents became public in the last 2 years — the current frontier
- 199CARRIER CORP57 patents · 1,327 citations
- 296HONEYWELL INT INC31 patents · 538 citations
- 392SMITH CORP A O23 patents · 290 citations
- 488MITSUBISHI ELECTRIC CORP69 patents · 432 citations
- 583RHEEM MFG CO92 patents · 321 citations
- 679ADEY HOLDINGS 2008 LTD36 patents · 98 citations
- 775TACO INC10 patents · 224 citations
- 871WATTS REGULATOR CO20 patents · 81 citations
- 967TRANE INT INC29 patents · 75 citations
- 1063NORITZ CORP49 patents · 81 citations
- 1158DAIKIN IND LTD27 patents · 66 citations
- 1254LG ELECTRONICS INC37 patents · 71 citations
- 1350NIBCO14 patents · 40 citations
- 1446HAMFOP TECH LLC6 patents · 21 citations
- 1542RHEEM AUSTRALIA PTY LTD12 patents · 22 citations
- 1638GRUNDFOS HOLDING AS41 patents · 38 citations
- 1733KYUNGDONG NAVIEN CO LTD26 patents · 28 citations
- 1829DEKA PRODUCTS LP7 patents · 45 citations
- 1925AMTROL LICENSING INC11 patents · 9 citations
- 2021AKIN JOE A3 patents · 37 citations
- 2117BOEING CO4 patents · 15 citations
- 2213INTELLIHOT INC16 patents · 6 citations
- 238ANTORA ENERGY INC2 patents · 34 citations
- 244COMMERCIAL ENERGY SAVING PLUS LLC3 patents · 9 citations
- 251OCTOPUS ENERGY HEATING LTD16 patents · 2 citations
Active· last 5 yrs
Sustained F24D output across the last 5 years
- 199STATE FARM MUTUAL AUTOMOBILE INSURANCE CO7 patents · 535 citations
- 296CARRIER CORP57 patents · 1,327 citations
- 392PROGRESS PROFILES SPA23 patents · 379 citations
- 488HONEYWELL INT INC31 patents · 538 citations
- 583LENNOX IND INC41 patents · 406 citations
- 679SMITH CORP A O23 patents · 290 citations
- 775MITSUBISHI ELECTRIC CORP69 patents · 432 citations
- 871RHEEM MFG CO92 patents · 321 citations
- 967ADEY HOLDINGS 2008 LTD36 patents · 98 citations
- 1063EMERSON ELECTRIC CO15 patents · 162 citations
- 1158DENSO CORP13 patents · 171 citations
- 1254DANFOSS AS14 patents · 156 citations
- 1350TACO INC10 patents · 224 citations
- 1446ADEMCO INC28 patents · 138 citations
- 1542GEN ELECTRIC18 patents · 150 citations
- 1638WATERFURNACE INT INC6 patents · 45 citations
- 1733GOODRICH CORP19 patents · 111 citations
- 1829FLAMCO BV7 patents · 86 citations
- 1925WATTS REGULATOR CO20 patents · 81 citations
- 2021TRANE INT INC29 patents · 75 citations
- 2117RINNAI KK17 patents · 60 citations
- 2213NORITZ CORP49 patents · 81 citations
- 238DAIKIN IND LTD27 patents · 66 citations
- 244ENERGY ENV CORPORATION7 patents · 20 citations
- 251JOHNSON CONTROLS TECH CO24 patents · 70 citations
All-time canon
All-time PatentIndex Score in F24D
- 199STATE FARM MUTUAL AUTOMOBILE INSURANCE CO7 patents · 535 citations
- 296MATSUSHITA ELECTRIC INDUSTRIAL CO LTD15 patents · 820 citations
- 392ELECTRIC POWER RES INST10 patents · 686 citations
- 488HONEYWELL INC13 patents · 713 citations
- 583CARRIER CORP57 patents · 1,327 citations
- 679GOOGLE INC15 patents · 325 citations
- 775PROGRESS PROFILES SPA23 patents · 379 citations
- 871HONEYWELL INT INC31 patents · 538 citations
- 967GAS RES INST12 patents · 466 citations
- 1063LENNOX IND INC41 patents · 406 citations
- 1158SMITH CORP A O23 patents · 290 citations
- 1254MITSUBISHI ELECTRIC CORP69 patents · 432 citations
- 1350HITACHI LTD12 patents · 299 citations
- 1446WHITE BRADFORD CORP6 patents · 289 citations
- 1542CONS NATURAL GAS SVC9 patents · 306 citations
- 1638ATLANTIC RICHFIELD CO5 patents · 262 citations
- 1733DEIVASIGAMANI SRIDHAR23 patents · 229 citations
- 1829BORG WARNER11 patents · 334 citations
- 1925TOSHIBA KK11 patents · 272 citations
- 2021UHR CORP4 patents · 423 citations
- 2117RHEEM MFG CO92 patents · 321 citations
- 2213FIEDRICH JOACHIM6 patents · 243 citations
- 238DUNHAM BUSH INC6 patents · 175 citations
- 244ADEY HOLDINGS 2008 LTD36 patents · 98 citations
- 251EMERSON ELECTRIC CO15 patents · 162 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth