Coen Company, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F23D BURNERS 230
 
  
 
F23C METHODS OR APPARATUS FOR COMBUSTION USING FLUENT FUEL 120
 
  
 
F23M CONSTRUCTIONAL DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR 115
 
  
 
F27D DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE 124
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 151

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5460512 Vibration-resistant low NO.sub.x burnerMay 09, 94Oct 24, 95[F23M]
5310337 Vibration-resistant low NO.sub.x burnerMay 27, 93May 10, 94[F23C]
5224539 Cooling system for air heaters and the likeJun 14, 91Jul 06, 93[F27D, F28F]
5102329 High intensity burnerApr 15, 91Apr 07, 92[F23D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0068,601 Burner Pilot With Virtual SpinnerAbandonedSep 03, 08Mar 12, 09[F23Q, F23D]
6929470 Low NOx duct burnerExpiredOct 16, 03Aug 16, 05[F23D]
2004/0209,130 Fuel cell anode gas oxidizing apparatus and processAbandonedApr 16, 04Oct 21, 04[H01M]
6453852 Temperature stratified superheater and duct burnerExpiredJun 22, 00Sep 24, 02[F22D]
6301875 Turbine exhaust gas duct heaterExpiredMay 31, 00Oct 16, 01[F02C]
5099879 Combustion air flow stabilizerExpiredMay 16, 91Mar 31, 92[F15D]
5049786 High energy ignitor power circuitExpiredAug 09, 90Sep 17, 91[H05B]
4823114 Flame scanning systemExpiredDec 02, 83Apr 18, 89[G08B]
4767319 Duct burnerExpiredMar 27, 87Aug 30, 88[F23D]
4726761 Method and apparatus for introducing combustion air into a combustion chamberExpiredJan 29, 87Feb 23, 88[F23M]
4685882 Pulverized fuel slurry burner and method of operating sameExpiredSep 09, 85Aug 11, 87[F23M]
4628832 Dual fuel pilot burner for a furnaceExpiredJan 29, 86Dec 16, 86[F23C]
4511325 System for the reduction of NO.sub.x emissionsExpiredDec 03, 82Apr 16, 85[F23N]
4488869 High efficiency, low NOX emitting, staged combustion burnerExpiredJul 06, 82Dec 18, 84[F23D]
4462795 Method of operating a wall fired duct heaterExpiredJan 24, 83Jul 31, 84[F24H, F23D]
4421473 Apparatus for operating a burner at an optimal levelExpiredJul 27, 81Dec 20, 83[F23N]
4387654 Method for firing a rotary kiln with pulverized solid fuelExpiredSep 02, 81Jun 14, 83[F23D]
4375952 Wall fired duct heaterExpiredAug 28, 80Mar 08, 83[F23M, F23D]
4362274 Dual fuel atomizerExpiredJun 27, 80Dec 07, 82[F23D]
4356970 Energy saving fuel oil atomizerExpiredMar 20, 80Nov 02, 82[B05B]

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