CPC Main Group Additional Only
F23B 2700/00 Combustion apparatus for solid fuel
16 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- F23B 2700/003 adapted for use in water-tube boilers
- F23B 2700/004 adapted for use in Tenbrink boilers
- F23B 2700/005 adapted for use in locomotives
- F23B 2700/006 Details of locomotive combustion apparatus
- F23B 2700/007 with pressurised combustion chambers
- F23B 2700/008 with interchangeable combustion chambers
- F23B 2700/009 adapted for use in various steam boilers
- F23B 2700/01 adapted for boilers built up from sections
- F23B 2700/011 with fuel shaft for steam boilers
- F23B 2700/012 with predrying in fuel supply area
- F23B 2700/013 for use in baking ovens or cooking vessels
- F23B 2700/014 for use in reverberatory furnaces
- F23B 2700/018 with fume afterburning by staged combustion
- F23B 2700/022 with various types of fume afterburners
- F23B 2700/023 with various arrangements not otherwise provided for
- F23B 2700/037 Burners for solid or solidified fuel, e.g. metaldehyde blocks
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