Topic leaderboard
Heat-exchange apparatus with direct contact
Ranked by the PatentIndex Score — a 1–99 percentile within F28C · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F28C patents became public in the last 2 years — the current frontier
- 199Mario Joseph Nappa8 patents · 65 citations
- 296David Andrew Aaron22 patents · 236 citations
- 392Preston Blay12 patents · 138 citations
- 488Yoon K. Shin9 patents · 50 citations
- 583Yohann Lilian Rousselet9 patents · 31 citations
- 679James C. Zaiser4 patents · 20 citations
- 775Billy Wayne Childers, Jr.3 patents · 29 citations
- 871Ellie M. Litwack3 patents · 8 citations
- 967Jean-Pierre Libert4 patents · 7 citations
- 1063Roshan Jachuck4 patents · 0 citations
- 1158Robert Bourdo, Ii2 patents · 15 citations
- 1254Du Nguyen2 patents · 3 citations
- 1350Jaisree Iyer2 patents · 3 citations
- 1446Joshuah K. Stolaroff2 patents · 3 citations
- 1542Pratanu Roy2 patents · 3 citations
- 1638Atul Amar Kumar Swamy2 patents · 2 citations
- 1733Aaron Reilly2 patents · 2 citations
- 1829Andrew Carl2 patents · 2 citations
- 1925Alex Thompson2 patents · 0 citations
- 2021Ben Heichelbech2 patents · 0 citations
- 2117Connor Rivard2 patents · 0 citations
- 2213Eunhwa Kim2 patents · 0 citations
- 238Sanjeev Agrawal2 patents · 0 citations
- 244Kiran Kota1 patents · 1 citations
- 251Ioannis Manousakis1 patents · 0 citations
Active· last 5 yrs
Sustained F28C output across the last 5 years
- 199Bruce A. Cincotta9 patents · 248 citations
- 296Harold D. Curtis13 patents · 234 citations
- 392Jidong Yang13 patents · 203 citations
- 488Frank T. Morrison9 patents · 161 citations
- 583Mario Joseph Nappa8 patents · 65 citations
- 679David Andrew Aaron22 patents · 236 citations
- 775Zan Liu10 patents · 146 citations
- 871Preston Blay12 patents · 138 citations
- 967George Lucas17 patents · 68 citations
- 1063Patrick M. Rollins17 patents · 68 citations
- 1158Michel Vouche11 patents · 61 citations
- 1254Yoon K. Shin9 patents · 50 citations
- 1350Yohann Lilian Rousselet9 patents · 31 citations
- 1446Christopher Lee Martin7 patents · 36 citations
- 1542Christophe Deleplanque6 patents · 25 citations
- 1638Fabien Fauconnier6 patents · 25 citations
- 1733Kathryn L. Pullen8 patents · 27 citations
- 1829Anthony Staniulis, Jr.6 patents · 22 citations
- 1925Kenneth P. Mortensen6 patents · 21 citations
- 2021Frank M. Kulick, Iii4 patents · 17 citations
- 2117Brian Edwards4 patents · 15 citations
- 2213Izak Nieuwoudt5 patents · 26 citations
- 238Jennifer Hamilton5 patents · 7 citations
- 244Kevin Egolf4 patents · 18 citations
- 251Michael S. Privett3 patents · 17 citations
All-time canon
Career PatentIndex Score in F28C
- 199Maximilian A. Biberger15 patents · 500 citations
- 296Frederick P. Layman10 patents · 293 citations
- 392Fredrick P. Layman5 patents · 200 citations
- 488Thomas P. Carter15 patents · 708 citations
- 583Robert E. Cates8 patents · 452 citations
- 679Branislav Korenic10 patents · 480 citations
- 775Ohler L. Kinney, Jr.21 patents · 487 citations
- 871Eldon F. Mockry26 patents · 464 citations
- 967Charles J. Bardo7 patents · 303 citations
- 1063Bruce A. Cincotta9 patents · 248 citations
- 1158Harold D. Curtis13 patents · 234 citations
- 1254Jason Stratman13 patents · 222 citations
- 1350Jidong Yang13 patents · 203 citations
- 1446Glenn S. Brenneke9 patents · 215 citations
- 1542Frank T. Morrison9 patents · 161 citations
- 1638Mario Joseph Nappa8 patents · 65 citations
- 1733Thomas W. Bugler10 patents · 178 citations
- 1829David Andrew Aaron22 patents · 236 citations
- 1925Philip Hollander10 patents · 174 citations
- 2021Peter M. Phelps8 patents · 144 citations
- 2117Michael James Lockett5 patents · 119 citations
- 2213Zan Liu10 patents · 146 citations
- 238Preston Blay12 patents · 138 citations
- 244John Edward Rule7 patents · 117 citations
- 251Richard H. Harrison, Jr.5 patents · 126 citations
Rising· last 2 yrs
The top-scoring F28C patents made public in the last 2 years
- 199US12044478B2✦ AIHeat exchanger system with machine-learning based optimization2 cites · 202458% earned
- 295US12276459B2✦ AISystems and methods for periodic nodal surface based reactors, distributors, contractors a1 cites · 202456% earned
- 391US12419661B2✦ AICooling tower1 cites · 202467% earned
- 486US12270579B2Flexible thermoelectric device1 cites · 202467% earned
- 582US12145015B2Compositions comprising 2,3,3,3-tetrafluoropropene, 1,1,2,3-tetra-chloropropene, 2-chloro-0 cites · 20240% earned
- 677US12352507B2Passive heat and mass transfer system0 cites · 20240% earned
- 773US12146659B2Methods, systems, and devices for flue gas cooling0 cites · 20240% earned
- 868US12287149B2Heat rejection apparatus, plume abatement system, and method0 cites · 20240% earned
- 964US11894288B1Pressure relief valve and adsorbent chamber for two-phase immersion cooling systems and me0 cites · 20240% earned
- 1059US12540731B2Abatement apparatus0 cites · 20240% earned
- 1155US12480666B2Heat reclamation system within a cooling tower for a manufacturing facility0 cites · 20240% earned
- 1250US12332277B1Thermal management system for a test-and-measurement probe0 cites · 20250% earned
- 1345US12379162B2Heat dissipation mesh for cooling tower0 cites · 20240% earned
- 1441US12228352B2Techclean direct heat exchange fill0 cites · 20240% earned
- 1536US12326299B2Sanitary direct contact steam injection heater0 cites · 20240% earned
- 1632US12546734B2Moisture monitoring system0 cites · 20250% earned
- 1727US12392568B1Components (air inlet louver panels) for cooling water management systems0 cites · 20250% earned
- 1823US12123326B2Apparatus and methods for the storage of energy as heat0 cites · 20240% earned
- 1918US12498176B2Cooling apparatus and method0 cites · 20240% earned
- 2014US12460867B2System for controlling temperature of a body0 cites · 20240% earned
- 219US12173679B1Cooling tower with hydroelectric power generation unit0 cites · 20240% earned
- 225US12523381B2Air conditioning device with indirect cooling by evaporation0 cites · 20240% earned
- 231US12607384B2Chilling unit and chilling-unit system0 cites · 2024
Active· last 5 yrs
The top-scoring F28C patents of the last 5 years
- 199US10900724B1✦ AIIndirect and direct evaporative cooling system8 cites · 202186% earned
- 296US11596824B2✦ AICompositions comprising 2,3,3,3-tetrafluoropropene, 1,1,2,3-tetra-chloropropene, 2-chloro-5 cites · 202260% earned
- 392US11260565B1✦ AIMethod of making a monolithic air transfer apparatus6 cites · 202285% earned
- 488US11073335B1Cooling tower integrated with a modified swamp cooler7 cites · 202186% earned
- 583US11732967B2Heat exchanger system with machine-learning based optimization6 cites · 202171% earned
- 679US11331644B2Fill sheets and related fill pack assemblies7 cites · 202186% earned
- 775US11644221B1Open cycle thermal management system with a vapor pump device5 cites · 202369% earned
- 871US12181179B2Hybrid heat pump with improved dehumidification3 cites · 202263% earned
- 967US11358116B2Fill sheets and related fill pack assemblies4 cites · 202170% earned
- 1063US11280341B2Heat exchanger assembly4 cites · 202182% earned
- 1158US11493289B1Wettable media and method of making the same3 cites · 202280% earned
- 1254US12196505B2Ecological system for cooling towers algae control3 cites · 202380% earned
- 1350US11821698B2Techclean direct heat exchange fill2 cites · 202276% earned
- 1446US11609052B2Pulsing adiabatic gas cooler2 cites · 202161% earned
- 1542US11543754B1Extractor piping on outermost sidewall of immersion hood apparatus2 cites · 202267% earned
- 1638US11885568B2Systems and methods for periodic nodal surface based reactors, distributors, contactors an2 cites · 202267% earned
- 1733US11988451B2Drift eliminator and method of making2 cites · 202167% earned
- 1829US12078385B2Heat dissipation systems with hygroscopic working fluid2 cites · 202161% earned
- 1925US11504814B2Air cooled condenser and related methods2 cites · 202167% earned
- 2021US11298706B2Systems and methods for collecting fluid from a gas stream2 cites · 202167% earned
- 2117US11333437B2Refrigeration unit with heat exchanging arrangement2 cites · 202176% earned
- 2213US12152838B2Flash closed heat exchanger2 cites · 202276% earned
- 238US12419661B2Cooling tower1 cites · 202467% earned
- 244US11359876B2Cooling tower splash bar hanger and related assembly2 cites · 202267% earned
- 251US11575166B2Device for regulating the temperature of a battery using a dielectric fluid, and battery p2 cites · 202176% earned
All-time canon
The defining F28C patents of the whole record
- 199US3959420A✦ AIDirect quench apparatus193 cites · 197694% earned
- 296US4727930A✦ AIHeat transfer and storage system192 cites · 198894% earned
- 392US7905990B2✦ AIRapid thermal conversion of biomass178 cites · 200985% earned
- 488US4363703AThermal gradient humidification-dehumidification desalination system155 cites · 198294% earned
- 583US5724828ACombination direct and indirect closed circuit evaporative heat exchanger with blow-throug141 cites · 199893% earned
- 679US4604247ATower packing material and method124 cites · 198693% earned
- 775US5349829AMethod and apparatus for evaporatively cooling gases and/or fluids123 cites · 199493% earned
- 871US4931187ACooling tower system122 cites · 199093% earned
- 967US6044647ATransfer system for cryogenic liquids119 cites · 200093% earned
- 1063US7033570B2Solar-thermal fluid-wall reaction processing113 cites · 200387% earned
- 1158US4597916AMethod of and apparatus for intermediate lamella vapor liquid contact113 cites · 198693% earned
- 1254US6142219AClosed circuit heat exchange system and method with reduced water consumption112 cites · 200093% earned
- 1350US5435382ACombination direct and indirect closed circuit evaporative heat exchanger110 cites · 199590% earned
- 1446US5390505AIndirect contact chiller air-precooler method and apparatus109 cites · 199593% earned
- 1542US8223495B1Electronic device cooling system107 cites · 201287% earned
- 1638US7905942B1Microwave purification process106 cites · 201174% earned
- 1733US6158237ARotatable heat transfer apparatus103 cites · 200093% earned
- 1829US6385987B2Heat exchanger for cooling and for a pre-cooler for turbine intake air conditioning93 cites · 200193% earned
- 1925US6213200B1Low profile heat exchange system and method with reduced water consumption92 cites · 200189% earned
- 2021US4076771ABottom vented wet-dry water cooling tower88 cites · 197893% earned
- 2117US4119140AAir cooled atmospheric heat exchanger87 cites · 197889% earned
- 2213US7511957B2Methods for fabricating a cooled electronic module employing a thermally conductive return87 cites · 200789% earned
- 238US3948627ALiquid sprayer87 cites · 197693% earned
- 244US5497633AEvaporative cooling unit86 cites · 199689% earned
- 251US7137623B2Heating tower apparatus and method with isolation of outlet and inlet air84 cites · 200687% earned
Rising· last 2 yrs
Assignees whose newest F28C patents became public in the last 2 years — the current frontier
- 199BALTIMORE AIRCOIL CO INC61 patents · 1,421 citations
- 295HYDRO THERMAL CORP10 patents · 282 citations
- 390CHEMOURS CO FC LLC10 patents · 67 citations
- 485EVAPCO INC18 patents · 27 citations
- 580ADVANCED TECH MANAGEMENT GROUP LLC4 patents · 0 citations
- 675L LIVERMORE NAT SECURITY LLC3 patents · 3 citations
- 770AGGREKO LLC2 patents · 2 citations
- 865NEXT CARBON SOLUTIONS LLC2 patents · 0 citations
- 960KOTA KIRAN1 patents · 1 citations
- 1055MTS IP Holdings Ltd1 patents · 0 citations
- 1150BANYAN WATER INC1 patents · 0 citations
- 1245BRUSSOW BRADLEY J1 patents · 0 citations
- 1340CAELI ENERGIE1 patents · 0 citations
- 1435EDWARDS LTD1 patents · 0 citations
- 1530HSU CHI-HSUAN1 patents · 0 citations
- 1625INSTITUTO NAC DE TECNICA AEROESPACIAL “ESTEBAN TERRADAS”1 patents · 0 citations
- 1720JONES WILLIAM1 patents · 0 citations
- 1815LI YU SUNG1 patents · 0 citations
- 1910SPHERE TECH LTD1 patents · 0 citations
- 205SYNCHROSTOR LTD1 patents · 0 citations
- 211TEKTRONIX INC1 patents · 0 citations
Active· last 5 yrs
Sustained F28C output across the last 5 years
- 199BALTIMORE AIRCOIL CO INC61 patents · 1,421 citations
- 296HYDRO THERMAL CORP10 patents · 282 citations
- 392CHEMOURS CO FC LLC10 patents · 67 citations
- 488PRIME DATUM INC10 patents · 32 citations
- 583BRENTWOOD IND INC8 patents · 48 citations
- 679SPX COOLING TECH INC16 patents · 41 citations
- 775PRIME DATUM DEV COMPANY LLC6 patents · 12 citations
- 871EVAPCO INC18 patents · 27 citations
- 967STANIULIS JR ANTHONY6 patents · 22 citations
- 1063ENERGY AND ENVIRONMENTAL RES CENTER FOUNDATION5 patents · 14 citations
- 1158CLIMATE MASTER INC3 patents · 17 citations
- 1254INERTECH IP LLC3 patents · 14 citations
- 1350BOOZ ALLEN HAMILTON INC4 patents · 6 citations
- 1446OVH4 patents · 12 citations
- 1542NAT TECH & ENG SOLUTIONS SANDIA LLC6 patents · 10 citations
- 1638HEATCRAFT REFRIGERATION PRODUCTS LLC3 patents · 6 citations
- 1733KOCH GLITSCH LP5 patents · 5 citations
- 1829SPG DRY COOLING USA LLC3 patents · 2 citations
- 1925TOKITAE LLC3 patents · 7 citations
- 2021CARRIER CORP5 patents · 6 citations
- 2117ADVANCED TECH MANAGEMENT GROUP LLC4 patents · 0 citations
- 2213ALLIANCE SUSTAINABLE ENERGY3 patents · 11 citations
- 238HAROLD D CURTIS REVOCABLE TRUST2 patents · 4 citations
- 244L LIVERMORE NAT SECURITY LLC3 patents · 3 citations
- 251SMITH & NEPHEW INC3 patents · 1 citations
All-time canon
All-time PatentIndex Score in F28C
- 199SDCMATERIALS INC10 patents · 375 citations
- 296BALTIMORE AIRCOIL CO INC61 patents · 1,421 citations
- 392BIBERGER MAXIMILIAN A7 patents · 165 citations
- 488MARLEY COOLING TOWER CO20 patents · 752 citations
- 583PRAXAIR TECHNOLOGY INC11 patents · 319 citations
- 679HYDRO THERMAL CORP10 patents · 282 citations
- 775SPX COOLING TECHNOLOGIES INC15 patents · 260 citations
- 871CERAMIC COOLING TOWER CO6 patents · 225 citations
- 967MUNTERS AB CARL6 patents · 183 citations
- 1063HAMON SOBELCO SA9 patents · 188 citations
- 1158GEN ELECTRIC10 patents · 123 citations
- 1254LAYMAN FREDRICK P4 patents · 94 citations
- 1350CHEMOURS CO FC LLC10 patents · 67 citations
- 1446MARLEY CO5 patents · 123 citations
- 1542KRUPP POLYSIUS AG6 patents · 99 citations
- 1638PHELPS PETER M5 patents · 99 citations
- 1733ECODYNE CORP6 patents · 84 citations
- 1829ISHIKAWAJIMA HARIMA HEAVY IND8 patents · 69 citations
- 1925MUNTERS CORP5 patents · 78 citations
- 2021MARLEY COOLING TECHNOLOGIES INC6 patents · 72 citations
- 2117ECOVAP INC7 patents · 29 citations
- 2213ORMAT TURBINES6 patents · 57 citations
- 238CURTIS HAROLD D4 patents · 122 citations
- 244SHELL OIL CO5 patents · 114 citations
- 251WESTINGHOUSE ELECTRIC CORP5 patents · 63 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth