RHEEM MANUFACTURING COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 741
 
  
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 1711
 
  
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 1398
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 1157
 
  
 
F24D DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR 911
 
  
 
F23D BURNERS 725
 
  
 
F23N REGULATING OR CONTROLLING COMBUSTION 615
 
  
 
C23F NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACES 531
 
  
 
F24C OTHER DOMESTIC STOVES OR RANGES; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION 528
 
  
 
1303 EQUIPMENT FOR DISTRIBUTION OR CONTROL OF ELECTRIC POWER566

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2018/0051,910 Cathodic Corrosion and Dry Fire Protection Apparatus and Methods for Electric WaterHeatersOct 30, 17Feb 22, 18[F24H, G05B, G01N, C23F]
2017/0284,702 HEAT PUMP WATER HEATERMar 29, 16Oct 05, 17[F24H, F25B]
2016/0047,548 FUEL-FIRED HEATING APPLIANCE HAVING FLAME INDICATOR ASSEMBLYAug 12, 14Feb 18, 16[F23N, F24D]
2015/0192,291 Multi-Cone Fuel Burner Apparatus For Multi-Tube Heat ExchangerJan 06, 14Jul 09, 15[F24H, F24D, F23D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9879881 Apparatus and methods for heating water with refrigerant from air conditioning systemMar 13, 14Jan 30, 18[F24H, F28D, F25B, F24D, F24F]
9874375 Electric water heater having dry fire protection capabilityJun 10, 15Jan 23, 18[F24H, H05B]
9874380 Apparatus and methods for controlling an electronic expansion valve in a refrigerant circuitApr 11, 13Jan 23, 18[F25B, F25D]
9863636 Fuel-fired heating appliance having flame indicator assemblyAug 12, 14Jan 09, 18[F23N, F24D]
9835359 Stackable water heater apparatusDec 08, 15Dec 05, 17[F24H]
9803887 Cathodic corrosion and dry fire protection apparatus and methods for electric water heatersJun 16, 14Oct 31, 17[F24H, G01N, G05B, C23F]
9772119 Fuel-fired heating appliance having improved burner assemblyAug 06, 14Sep 26, 17[F24H, F23C, F23D]
9739483 Fuel/air mixture and combustion apparatus and associated methods for use in a fuel-fired heating apparatusNov 19, 13Aug 22, 17[F24H, F23D]
9714774 Downfired high efficiency gas-fired water heaterJul 15, 13Jul 25, 17[F24H, F22B]
9677785 Electronic water level sensing apparatus and associated methodsNov 20, 12Jun 13, 17[F24H, G01F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0061,462 APPARATUS AND METHOD FOR HYBRID WATER HEATING AND AIR COOLING AND CONTROL THEREOFAbandonedSep 03, 14Mar 03, 16[F24F]
2013/0045,451 Compensating for Gas Applicance De-Rate at High AltitudesAbandonedJun 13, 12Feb 21, 13[F24H]
2010/0192,873 Burner Flashback Detection and System Shutdown ApparatusAbandonedApr 12, 10Aug 05, 10[F24H]
7607408 Water heater burner clogging detection and shutdown systemExpiredSep 27, 06Oct 27, 09[F24H, F23Q]
2007/0154,856 Dual fuel boiler with backflow-preventing valve arrangementAbandonedJan 03, 06Jul 05, 07[F23N]
2007/0137,224 AUTOMATED CONDENSING UNIT TEST APPARATUSAbandonedFeb 22, 07Jun 21, 07[G01K, F25B]
2007/0051,359 Looped system fuel-fired fluid heating/storage deviceAbandonedSep 08, 05Mar 08, 07[F24H]
2007/0039,568 Water Heater Burner Clogging Detection and Shutdown System with Associated Burner ApparatusAbandonedSep 25, 06Feb 22, 07[F22B]
7162980 Water heater burner clogging detection and shutdown systemExpiredNov 18, 04Jan 16, 07[F23N]
2006/0275,720 Low power control system and associated methods for a water heater with flammable vapor sensorAbandonedJun 02, 05Dec 07, 06[F23N]
2006/0049,023 Rotary conveyor belt cleanerAbandonedSep 09, 04Mar 09, 06[B65G]
2006/0026,973 Automated condensing unit test apparatus and associated methodsAbandonedAug 03, 04Feb 09, 06[G01K, F25B]
6964248 Fuel-fired heating appliance with temperature-based fuel shutoff systemExpiredSep 28, 04Nov 15, 05[F24H]
2005/0150,279 Pressure-based fluid corrosion/erosion protection apparatus and associated methodsAbandonedJan 08, 04Jul 14, 05[G01N, B65D]
2005/0151,546 Electrically-based fluid corrosion/erosion protection apparatus and associated methodsAbandonedJan 08, 04Jul 14, 05[G01N]
6901766 Coil drain pan apparatusExpiredJan 08, 04Jun 07, 05[F25D]
6600960 Boiler system ignition sequence detector and associated methods of protecting boiler systemsExpiredJun 09, 00Jul 29, 03[G05B]
6554610 Methods for constructing a combustion chamber access door and associated apparatusExpiredMar 04, 02Apr 29, 03[F27D]
6551098 Variable firing rate fuel burnerExpiredFeb 22, 01Apr 22, 03[F23M, F23Q, F23D]
6547558 Methods of making a fuel-fired heating applianceExpiredMar 04, 02Apr 15, 03[F27D]

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