Topic leaderboard
Cleaning of heat-exchange surfaces
Ranked by the PatentIndex Score — a 1–99 percentile within F28G · public-visibility date · generated 2026
top 25 per window · public-visibility date
Rising· last 2 yrs
Inventors whose newest F28G patents became public in the last 2 years — the current frontier
- 199Terry D. Gromes, Sr.20 patents · 80 citations
- 296Gordon W. East15 patents · 63 citations
- 392Jon M. Shockey, Jr.15 patents · 63 citations
- 488Terry D. Gromes, Jr.15 patents · 63 citations
- 583William C. Jackson15 patents · 63 citations
- 679Jeffery R. Barnes15 patents · 40 citations
- 775Joseph A. Schneider11 patents · 23 citations
- 871Alexander Poltorak8 patents · 13 citations
- 967Cody R. Montoya11 patents · 14 citations
- 1063Daniel Szabo7 patents · 10 citations
- 1158Bradley A. Mcginnis5 patents · 2 citations
- 1254Rodrick E. Hall5 patents · 2 citations
- 1350Bodo Skaletz4 patents · 6 citations
- 1446Reinhard Eisermann4 patents · 6 citations
- 1542Travis Watkins3 patents · 4 citations
- 1638Roshan Jachuck4 patents · 0 citations
- 1733Brian Jamieson2 patents · 10 citations
- 1829Charles B. Dirks2 patents · 10 citations
- 1925Michael Crocker2 patents · 10 citations
- 2021Timothy Schneider3 patents · 2 citations
- 2117Donald R. Drolet2 patents · 3 citations
- 2213Matthew Warwick2 patents · 3 citations
- 238Ricky Eugene Smith2 patents · 3 citations
- 244Walter D. Richter, Iii2 patents · 3 citations
- 251Matthew Hastey2 patents · 2 citations
Active· last 5 yrs
Sustained F28G output across the last 5 years
- 199Terry D. Gromes, Sr.20 patents · 80 citations
- 296Gordon W. East15 patents · 63 citations
- 392Jon M. Shockey, Jr.15 patents · 63 citations
- 488Terry D. Gromes, Jr.15 patents · 63 citations
- 583William C. Jackson15 patents · 63 citations
- 679Joseph J. Franzino13 patents · 90 citations
- 775Timothy J. Kane15 patents · 87 citations
- 871Takuya Sasaki5 patents · 91 citations
- 967Jeffery R. Barnes15 patents · 40 citations
- 1063Joseph A. Schneider11 patents · 23 citations
- 1158Alexander Poltorak8 patents · 13 citations
- 1254Cody R. Montoya11 patents · 14 citations
- 1350Gerald P. Zink7 patents · 11 citations
- 1446Daniel Szabo7 patents · 10 citations
- 1542Abdullah M. Al-Otaibi5 patents · 13 citations
- 1638Kristen E. Griffin10 patents · 10 citations
- 1733Johannes Stickling6 patents · 10 citations
- 1829Arthur J. Dwight4 patents · 7 citations
- 1925Rudolph Singleton4 patents · 7 citations
- 2021Bart Andre Salters6 patents · 5 citations
- 2117Roelant Boudewijn Hietbrink6 patents · 5 citations
- 2213Adam Christopher Markham4 patents · 6 citations
- 238Scott Howell4 patents · 6 citations
- 244Cooper Hanley3 patents · 6 citations
- 251Michael Hardy2 patents · 16 citations
All-time canon
Career PatentIndex Score in F28G
- 199Terry D. Scharton5 patents · 327 citations
- 296Thomas B. Boisture7 patents · 299 citations
- 392Don W. Smith5 patents · 223 citations
- 488Gregg D. Auld6 patents · 228 citations
- 583Katsumoto Otake9 patents · 281 citations
- 679Masahiko Miyai6 patents · 255 citations
- 775Isao Okouchi5 patents · 244 citations
- 871Kurt Prouty7 patents · 152 citations
- 967Yasuteru Mukai5 patents · 240 citations
- 1063Richard D. Franklin7 patents · 191 citations
- 1158Augustus J. Ashton, Iii5 patents · 123 citations
- 1254David E. Murray5 patents · 152 citations
- 1350Donald Howard6 patents · 111 citations
- 1446Francis Zilka6 patents · 111 citations
- 1542Timothy Zilka6 patents · 111 citations
- 1638Klaus Eimer10 patents · 185 citations
- 1733Walter J. Baron19 patents · 217 citations
- 1829Clinton A. Brown7 patents · 158 citations
- 1925Jesse Johnston7 patents · 156 citations
- 2021George Taylor4 patents · 263 citations
- 2117Robert W. Vowles7 patents · 166 citations
- 2213Eric Lenglet7 patents · 142 citations
- 238Thomas E. Moskal5 patents · 109 citations
- 244Charles W. Hammond5 patents · 127 citations
- 251Hans Schwade8 patents · 129 citations
Rising· last 2 yrs
The top-scoring F28G patents made public in the last 2 years
- 199US11933556B1✦ AITube bundle cleaning system and method3 cites · 202467% earned
- 296US12339078B2✦ AISystem and method for maintaining efficiency of a heat sink1 cites · 202444% earned
- 392US12352507B2✦ AIPassive heat and mass transfer system0 cites · 20240% earned
- 488US12434276B2Cleaner apparatus0 cites · 20250% earned
- 583US12345483B2Flexible tube cleaning lance positioner frame apparatus0 cites · 20240% earned
- 679US12422203B2Flexible lance drive apparatus with autostroke function0 cites · 20240% earned
- 775US12443206B2Indexer, indexer retrofit kit and method of use thereof0 cites · 20250% earned
- 871US12313356B2Data logger device and system for high pressure leaning lance drive apparatus0 cites · 20240% earned
- 967US12258699B2Heat exchanger cleaning system for laundry appliance0 cites · 20240% earned
- 1063US12203688B2Automatic cleaning of adiabatic condenser cooling pads0 cites · 20240% earned
- 1158US12339073B2Method for monitoring a tube sheet of a heat exchanger0 cites · 20240% earned
- 1254US12422411B2System and method for monitoring and diagnosis of heat exchanger tube health0 cites · 20240% earned
- 1350US12246363B2Method and cleaning device for cleaning the interior of pipes0 cites · 20240% earned
- 1446US12345484B2Cleaning system and method0 cites · 20240% earned
- 1542US12305932B2Flow assisted anti-fouling geometries for compact heat exchangers0 cites · 20240% earned
- 1638US12319819B1Thermolysis system and method for obtaining recovered carbon black and fuel from disused t0 cites · 20250% earned
- 1733US12366421B2Thermally adaptive flow conduit0 cites · 20240% earned
- 1829US12427439B2System and method for cleaning of a forced-circulation evaporative crystallizer0 cites · 20240% earned
- 1925US12540729B2Method and apparatus for improving steam oxidation resistance of small diameter boiler tub0 cites · 20250% earned
- 2021US12390938B2Device and method for removing foreign object from heat transfer tube0 cites · 20240% earned
- 2117US12474009B2Apparatus for tracking a pig0 cites · 20240% earned
- 2213US12564831B2Catalyst regeneration system utilization for heat exchanger decoking0 cites · 20250% earned
- 238US11959268B2Shower drain system and a shower or shower cabin0 cites · 20240% earned
- 244US12510313B1Method of cleaning a cold box0 cites · 20250% earned
- 251US12281864B2Radiator cleaning assembly0 cites · 20240% earned
Active· last 5 yrs
The top-scoring F28G patents of the last 5 years
- 199US12123654B2✦ AISystem and method for maintaining efficiency of a fractal heat sink4 cites · 202367% earned
- 296US11933556B1✦ AITube bundle cleaning system and method3 cites · 202467% earned
- 392US11852410B2✦ AIBack-blowing unblocking device for dustproof screen of dryer, dustproof equipment, and dry4 cites · 202382% earned
- 488US12339078B2System and method for maintaining efficiency of a heat sink1 cites · 202444% earned
- 583US11738378B2Auto-indexing lance positioner apparatus and system2 cites · 202358% earned
- 679US11867442B2Automatic cleaning of adiabatic condenser cooling pads2 cites · 202267% earned
- 775US12083449B2Steam co-injection for the reduction of heat exchange and furnace fouling2 cites · 202267% earned
- 871US11408693B2System for automatically cleaning boiler pipes2 cites · 202176% earned
- 967US11719377B2Header delivery system2 cites · 202176% earned
- 1063US11713932B2Flexible tube cleaning lance positioner frame apparatus2 cites · 202261% earned
- 1158US11408694B2Reciprocating spray cleaning system for air-cooled heat exchangers2 cites · 202176% earned
- 1254US10890354B1System for facilitating the cleaning of a mini-split air handling unit2 cites · 202176% earned
- 1350US11454466B2Automatic washing apparatus for heat exchanger bundle2 cites · 202176% earned
- 1446US11873203B2Cleaning method of heat sterilization system and cleaning apparatus thereof2 cites · 202176% earned
- 1542US11788807B2Apparatus and method for cleaning HVAC cooling coils1 cites · 202367% earned
- 1638US11156354B2Method for evaluating fouling of a heat exchanger2 cites · 202176% earned
- 1733US11428482B2Industrial cleaning systems, including solutions for removing various types of deposits, a1 cites · 202156% earned
- 1829US11384291B1Petrochemical processing systems and methods for reducing the deposition and accumulation 1 cites · 202267% earned
- 1925US12298092B2HVAC exterior cleaning pipework1 cites · 202367% earned
- 2021US11460197B1Air transfer apparatus integrally formed with a cavity and for adapting with a heat exchan1 cites · 202267% earned
- 2117US12074089B2Heat exchanger1 cites · 202167% earned
- 2213US11440062B2System and method for cleaning a tube1 cites · 202167% earned
- 238US12066232B2Automatic maintenance and flow control of heat exchanger1 cites · 202156% earned
- 244US11143107B2Fuel gas heater, support structure for fuel gas heater, and method for cleaning fuel gas h1 cites · 202167% earned
- 251US11566848B2Passive heat and mass transfer system0 cites · 20210% earned
All-time canon
The defining F28G patents of the whole record
- 199US4390058A✦ AIMethod of monitoring condenser performance and system therefor140 cites · 198393% earned
- 296US6681839B1✦ AIHeat exchanger exchange-tube cleaning lance positioning system131 cites · 200493% earned
- 392US5226285A✦ AISelf-cleaning heat exchanger fan assembly and controls102 cites · 199393% earned
- 488US4120699AMethod for acoustical cleaning96 cites · 197893% earned
- 583US5494004AOn line pulsed detonation/deflagration soot blower93 cites · 199693% earned
- 679US6500271B1Pipeline pig91 cites · 200293% earned
- 775US6840251B2Methods of simultaneously cleaning and disinfecting industrial water systems90 cites · 200389% earned
- 871US5488826AHeat isolated catalytic reactor88 cites · 199689% earned
- 967US6325025B1Sootblowing optimization system84 cites · 200189% earned
- 1063US5181482ASootblowing advisor and automation system83 cites · 199393% earned
- 1158US4645542AMethod of pressure pulse cleaning the interior of heat exchanger tubes located within a pr81 cites · 198793% earned
- 1254US6318108B1Self-washing coil for air conditioning units80 cites · 200193% earned
- 1350US6736089B1Method and system for sootblowing optimization79 cites · 200484% earned
- 1446US5615696AApparatus for treating pipe79 cites · 199789% earned
- 1542US6290778B1Method and apparatus for sonic cleaning of heat exchangers79 cites · 200193% earned
- 1638US5154197AChemical cleaning method for steam generators utilizing pressure pulsing76 cites · 199293% earned
- 1733US5813089ADuct cleaning apparatus76 cites · 199893% earned
- 1829US4803959AIndexing sootblower73 cites · 198993% earned
- 1925US4488516ASoot blower system71 cites · 198493% earned
- 2021US6423152B1Method and apparatus for treatment of internal surfaces in a closed-loop fluid system71 cites · 200293% earned
- 2117US4920994ALaser removal of sludge from steam generators70 cites · 199092% earned
- 2213US4355536ASludge measuring apparatus and ultrasonic probe assembly therefor69 cites · 198292% earned
- 238US4773357AWater cannon apparatus and method for cleaning a tube bundle heat exchanger, boiler, conde69 cites · 198892% earned
- 244US4300247AEnergy conservation in shower bathing69 cites · 198192% earned
- 251US3996062AMethod for removing scale from metallic substrates68 cites · 197692% earned
Rising· last 2 yrs
Assignees whose newest F28G patents became public in the last 2 years — the current frontier
- 199STONEAGE INC37 patents · 93 citations
- 295FRACTAL HEATSINK TECH LLC8 patents · 13 citations
- 390SAUDI ARABIAN OIL CO7 patents · 14 citations
- 486HAMILTON SUNDSTRAND CORP6 patents · 8 citations
- 581DOS VIEJOS AMIGOS LLC5 patents · 2 citations
- 676LOBBE IND GMBH & CO KG4 patents · 6 citations
- 771ADVANCED TECH MANAGEMENT GROUP LLC4 patents · 0 citations
- 867USA DEBUSK LLC2 patents · 3 citations
- 962MCDONNELL JOSEPH3 patents · 0 citations
- 1057HEATCRAFT REFRIGERATION PRODUCTS LLC2 patents · 2 citations
- 1152NAT TECH & ENG SOLUTIONS SANDIA LLC2 patents · 0 citations
- 1248RUIZ HERRERA LUIS JAVIER2 patents · 0 citations
- 1343DOOSAN ENERBILITY CO LTD3 patents · 0 citations
- 1438ARKEMA INC1 patents · 0 citations
- 1533INNOVAS TECH LLC1 patents · 0 citations
- 1629WHIRLPOOL CO1 patents · 0 citations
- 1724CARLOCK GARY1 patents · 0 citations
- 1819COKEBUSTERS LTD1 patents · 0 citations
- 1914ENDUCE AB1 patents · 0 citations
- 2010KUWAIT NAT PETROLEUM COMPANY1 patents · 0 citations
- 215SALTWORKS TECH INC1 patents · 0 citations
- 221XIAN THERMAL POWER RES INST CO1 patents · 0 citations
Active· last 5 yrs
Sustained F28G output across the last 5 years
- 199MITSUBISHI HEAVY IND LTD7 patents · 124 citations
- 296TERYDON INC15 patents · 65 citations
- 392STONEAGE INC37 patents · 93 citations
- 488KANE TIMOTHY7 patents · 49 citations
- 583FRACTAL HEATSINK TECH LLC8 patents · 13 citations
- 679CROSSFORD INT LLC9 patents · 30 citations
- 775TRUE MFG CO INC4 patents · 41 citations
- 871SAUDI ARABIAN OIL CO7 patents · 14 citations
- 967GEN ELECTRIC7 patents · 10 citations
- 1063STICKLING JOHANNES6 patents · 10 citations
- 1158HAMILTON SUNDSTRAND CORP6 patents · 8 citations
- 1254KONINKLIJKE PHILIPS NV7 patents · 5 citations
- 1350DAIKIN IND LTD4 patents · 18 citations
- 1446CARRIER CORP3 patents · 20 citations
- 1542ECOLAB USA INC5 patents · 4 citations
- 1638DOS VIEJOS AMIGOS LLC5 patents · 2 citations
- 1733LOBBE IND GMBH & CO KG4 patents · 6 citations
- 1829CHEVRON PHILLIPS CHEMICAL CO LP4 patents · 1 citations
- 1925COIL FLOW MAX INC3 patents · 3 citations
- 2021ADVANCED TECH MANAGEMENT GROUP LLC4 patents · 0 citations
- 2117ANGARA IND LTD3 patents · 5 citations
- 2213BLUE BOX AIR LLC3 patents · 7 citations
- 238ALTUM TECH OY4 patents · 4 citations
- 244HARRIS WILLIAM EDMUND2 patents · 5 citations
- 251USA DEBUSK LLC2 patents · 3 citations
All-time canon
All-time PatentIndex Score in F28G
- 199ANCO ENGINEERS INC5 patents · 327 citations
- 296BABCOCK & WILCOX CO46 patents · 1,229 citations
- 392WESTINGHOUSE ELECTRIC CORP24 patents · 699 citations
- 488ELECTRIC POWER RES INST8 patents · 315 citations
- 583OHMSTEDE MECHANICAL SERVICES I6 patents · 260 citations
- 679AMERICAN WATER SERVICES25 patents · 420 citations
- 775HALLIBURTON CO10 patents · 267 citations
- 871SHELL OIL CO8 patents · 174 citations
- 967COMBUSTION ENG11 patents · 269 citations
- 1063TAPROGGE GMBH20 patents · 351 citations
- 1158HITACHI LTD10 patents · 281 citations
- 1254FOSTER MILLER INC5 patents · 123 citations
- 1350NORTH AMERICAN IND SERVICES IN6 patents · 111 citations
- 1446DIAMOND POWER INT INC10 patents · 153 citations
- 1542NALCO CO5 patents · 151 citations
- 1638WHITE CONSOLIDATED IND INC8 patents · 119 citations
- 1733MITSUBISHI HEAVY IND LTD7 patents · 124 citations
- 1829STEINMUELLER GMBH L & C5 patents · 85 citations
- 1925BARRY BROS SPEC SERVICES5 patents · 96 citations
- 2021TERYDON INC15 patents · 65 citations
- 2117NALCO CHEMICAL CO5 patents · 89 citations
- 2213EBARA CORP7 patents · 94 citations
- 238FRAMATOME SA4 patents · 133 citations
- 244CATERPILLAR INC4 patents · 125 citations
- 251UNION CARBIDE CORP4 patents · 137 citations
90–99 field-defining50–89 strong<50 emergingearned by citationsfrom family breadth