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CPC Main Group Additional Only
F23M 2900/00

Special features of, or arrangements for combustion chambers

14 direct subcodes

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  • F23M 2900/05001 Preventing corrosion by using special lining materials or other techniques
  • F23M 2900/05002 Means for accommodate thermal expansion of the wall liner
  • F23M 2900/05003 Details of manufacturing specially adapted for combustion chambers
  • F23M 2900/05004 Special materials for walls or lining
  • F23M 2900/05005 Sealing means between wall tiles or panels
  • F23M 2900/05021 Wall blocks adapted for burner openings
  • F23M 2900/09061 Moving baffles, e.g. rotating baffles, for creating vortices
  • F23M 2900/09062 Tube-shaped baffles confining the flame
  • F23M 2900/11021 Means for avoiding accidental fires in rooms where the combustion device is located
  • F23M 2900/11041 Means for observing or monitoring flames using photoelectric devices, e.g. phototransistors
  • F23M 2900/13001 Energy recovery by fuel cells arranged in the combustion plant
  • F23M 2900/13002 Energy recovery by heat storage elements arranged in the combustion chamber
  • F23M 2900/13003 Energy recovery by thermoelectric elements, e.g. by Peltier/Seebeck effect, arranged in the combustion plant
  • F23M 2900/13004 Energy recovery by thermo-photo-voltaic [TPV] elements arranged in the combustion plant

Top Applicants

Top 10 applicants by patent filingsfor class F23, 2013–2023, worldwide · Source: EPO PATSTAT

  1. GE (GENERAL ELECTRIC COMPANY) US 2,581
  2. UNITED TECHNOLOGIES CORPORATION (UTC) US 1,180
  3. SIEMENS DE 1,157
  4. GE (GENERAL ELECTRIC COMPANY) 994
  5. XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 769
  6. MITSUBISHI HEAVY INDUSTRIES JP 701
  7. MITSUBISHI HITACHI POWER SYSTEMS JP 695
  8. RAYTHEON TECHNOLOGIES CORPORATION US 587
  9. NINGBO FOTILE KITCHENWARE COMPANY 543
  10. GENERAL ELECTRIC TECHNOLOGY CH 490