CPC Subgroup
F23K 5/14 Details thereof
Full Title
Feeding or distributing other fuel to combustion apparatus > Liquid fuel > Details thereof
6 direct subcodes
Child Classifications
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- F23K 5/16 Safety devices (cleaning or purging devices, e.g. filters F23K5/18)
- F23K 5/18 Cleaning or purging devices, e.g. filters
- F23K 5/20 Preheating devices (in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44)
- F23K 5/22 Vaporising devices (in burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space F23D11/44)
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