AOS HOLDING 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 239
 
 
 
F22B METHODS OF STEAM GENERATION; STEAM BOILERS 208
 
 
 
H05B ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR 8103
 
 
 
F23D BURNERS 428
 
 
 
F23N REGULATING OR CONTROLLING COMBUSTION 318
 
 
 
B05D PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 285
 
 
 
A47J KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES 149
 
 
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
 
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
 
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 1124

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9435565 Water heater and method of operating the sameDec 18, 08Sep 06, 16[F24H]
9228746 Heating device having a secondary safety circuit for a fuel line and method of operating the sameMay 31, 06Jan 05, 16[F23N]
8596225 Anti-stacking pump assembly for a water heater and method of operating the sameNov 20, 08Dec 03, 13[F22B]
8596226 Water heater burner tube and door assemblyApr 28, 09Dec 03, 13[F16L, F24H]
8375897 Gas water heaterNov 23, 09Feb 19, 13[F24H]
8277912 Organic polymer coatings for water containersFeb 19, 09Oct 02, 12[B29D, B32B]
8176937 Temperature adjustable mixing valveMar 31, 09May 15, 12[F16K]
8161918 Water heaterAug 25, 08Apr 24, 12[F24D]
8162232 Water storage device having a powered anodeMar 21, 08Apr 24, 12[F24H, H05B]
8113154 Transition element for a passage in a water heaterOct 24, 08Feb 14, 12[F22B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0296,674 RESISTOR ANODE ASSEMBLYAbandonedAug 18, 11Dec 08, 11[H01C]
2010/0269,345 MEMBRANE SEAL FOR WATER HEATER TANK SPUDSAbandonedApr 28, 09Oct 28, 10[B21D]
2010/0192,874 PULSE COMBUSTION SYSTEM FOR A WATER HEATERAbandonedJan 30, 09Aug 05, 10[F24H, F23C]
2010/0077,969 METHOD OF WATER HEATING AND DISTRIBUTIONAbandonedDec 08, 09Apr 01, 10[F24H]
2009/0250,017 WATER HEATER WITH PRESSURIZED COMBUSTIONAbandonedApr 06, 09Oct 08, 09[F24H, F24D]
2009/0241,858 WATER HEATER WITH HIGH EFFICIENCY BAFFLESAbandonedApr 01, 08Oct 01, 09[F24H]
7590470 Heating apparatus and method of detecting a short-cycling conditionExpiredNov 29, 04Sep 15, 09[G05B, G05D]
2009/0061,367 APPLIANCE HAVING A SAFETY STRINGAbandonedJan 29, 08Mar 05, 09[G01R, F23N]
2009/0061,368 APPLIANCE HAVING LOAD MONITORING SYSTEMAbandonedJan 29, 08Mar 05, 09[F23N, G08B, F24B]
2008/0302,784 WATER STORAGE DEVICE HAVING A POWERED ANODEAbandonedMar 21, 08Dec 11, 08[H05B]
7438023 Heating device having a thermal cut-off circuit for a fuel line and method of operating the sameExpiredJun 07, 06Oct 21, 08[F23N]
2008/0232,977 Pump ControlAbandonedJul 30, 04Sep 25, 08[F04B]
2008/0145,803 APPARATUS AND METHOD OF DETECTING IGNITER TYPEAbandonedFeb 19, 08Jun 19, 08[F23N, F23Q]
7277627 Rooftop water heaterExpiredFeb 18, 03Oct 02, 07[A47J]
6948454 Airflow apparatusExpiredMay 10, 04Sep 27, 05[F22B]
2005/0162,109 Control circuit and method of activating a gas valveAbandonedJan 14, 05Jul 28, 05[H02P]
2005/0095,139 Apparatus and method for containing and regulating the pressure in a pressure vesselAbandonedOct 30, 03May 05, 05[F04B]
6821567 Water-resistant porcelain enamel coatings and method of manufacturing sameWithdrawnJul 08, 02Nov 23, 04[B05D]
6790481 Corrosion-resistant heat exchangerExpiredJan 21, 03Sep 14, 04[B05D]
6745724 Water heater having flue damper with airflow apparatusExpiredApr 10, 03Jun 08, 04[F22B]

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