CAMBRIDGE ENGINEERING, INC.

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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 423
 
  
 
F26B DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM 228
 
  
 
F23D BURNERS 131
 
  
 
F23L AIR SUPPLY; DRAUGHT-INDUCING; SUPPLYING NON-COMBUSTIBLE LIQUID OR GAS 116
 
  
 
F23N REGULATING OR CONTROLLING COMBUSTION 120
 
  
 
G01K MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR 145

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9188362 Direct fired heaters including premix burner technologyJan 27, 14Nov 17, 15[F24H]
9163856 Hot air heater and blower assemblyMar 05, 12Oct 20, 15[F24H, F23L]
8726539 Heater and controls for extraction of moisture and biological organisms from structuresSep 18, 12May 20, 14[F26B]
8693855 Infra-red heater assemblyMay 06, 10Apr 08, 14[F26B, F24D]
8388222 Device for indicating eradication of a pest infestationFeb 09, 11Mar 05, 13[G01K, G01N]
7568908 Low fire start controlAug 19, 02Aug 04, 09[F23N]
6526964 Direct gas-fired burner assemblyMay 19, 00Mar 04, 03[F24H, F23D]
5083918 Direct gas-fired burner assemblyFeb 19, 91Jan 28, 92[F24H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0146,652 DIRECT FIRED HEATERS WITH IN-SHOT BURNERS, TUBULAR COMBUSTION CHAMBERS, AND/OR VARIABLE VENTURIAbandonedDec 17, 09Jun 23, 11[F24H]
5399086 Gas-fired air heater assemblyExpiredSep 29, 93Mar 21, 95[F24H]
4993944 Direct gas-fired burner assemblyExpiredFeb 16, 90Feb 19, 91[F24H]
4929541 Direct gas fired industrial air heater burnerExpiredSep 02, 88May 29, 90[F24H]
4753218 Continuous water wash hood type ventilating systemExpiredFeb 09, 87Jun 28, 88[F24C]
4700688 Ventilating hoodExpiredOct 10, 86Oct 20, 87[F23J, F21C]
4552059 Flow measurement for exhaust-type canopy and ventilating hoodExpiredSep 18, 84Nov 12, 85[F24C]
4286572 Ventilating hoodExpiredMar 08, 79Sep 01, 81[F23J, F21C]

Top Inventors for This Owner

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