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