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CPC Main Group
F23C 13/00

Apparatus in which combustion takes place in the presence of catalytic material (in a fluidised bed of catalytic particles F23C10/01; radiant gas burners using catalysis for flameless combustion F23D14/18)

4 direct subcodes

Child Classifications

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  • F23C 13/02 characterised by arrangements for starting the operation, e.g. for heating the catalytic material to operating temperature
  • F23C 13/04 characterised by arrangements of two or more catalytic elements in series connection
  • F23C 13/06 in which non-catalytic combustion takes place in addition to catalytic combustion, e.g. downstream of a catalytic element
  • F23C 13/08 characterised by the catalytic material

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