F23C 7/00 Combustion apparatus characterised by arrangements for air supply (inlets for fluidisation air F23C10/20; baffles or shields with air supply passages F23M9/04)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Combustion apparatus characterised by arrangements for air supply
CPC: Combustion apparatus characterised by arrangements for air supply (inlets for fluidisation air F23C10/20; baffles or shields with air supply passages F23M9/04)
Full Title
Full titles differ between systems:
Combustion apparatus characterised by arrangements for air supply
Combustion apparatus characterised by arrangements for air supply (inlets for fluidisation air F23C10/20; baffles or shields with air supply passages F23M9/04)
CPC subdivides this area 3x more granularly than IPC with 2 additional codes.
2 codes are CPC-only extensions.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- F23C 7/02 Disposition of air supply not passing through burner (to obtain a cyclonic tapering flame when burning pulverulent fuel F23C5/32) IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class F23,2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 2,124
- XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 1,369
- NINGBO FOTILE KITCHENWARE COMPANY 1,363
- SIEMENS DE 997
- UNITED TECHNOLOGIES CORPORATION (UTC) US 937
- GE (GENERAL ELECTRIC COMPANY) 898
- VATTI 815
- CHINESE ACADEMY OF SCIENCES 719
- RINNAI COMPANY 708
- MITSUBISHI HITACHI POWER SYSTEMS 670
Top Applicants (CPC)
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