CPC Main Group
F23D 11/00 Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
10 direct subcodes
Child Classifications
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- F23D 11/02 the combustion space being a chamber substantially at atmospheric pressure
- F23D 11/04 the spraying action being obtained by centrifugal action
- F23D 11/10 the spraying being induced by a gaseous medium, e.g. water vapour
- F23D 11/24 by pressurisation of the fuel before a nozzle through which it is sprayed by a substantial pressure reduction into a space
- F23D 11/32 by electrostatic means
- F23D 11/34 by ultrasonic means
- F23D 11/36 Details
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