CPC Main Group
F23B 40/00 Combustion apparatus with driven means for feeding fuel into the combustion chamber
3 direct subcodes
Child Classifications
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- F23B 40/02 the fuel being fed by scattering over the fuel-supporting surface
- F23B 40/04 the fuel being fed from below through an opening in the fuel-supporting surface
- F23B 40/06 the fuel being fed along the fuel-supporting surface
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