CPC Main Group Additional Only
F23K 2900/00 Special features of, or arrangements for fuel supplies
Filing statistics
CPC F23K 2900/00 belongs to the parent subclass F23K, which recorded 9,121 patent applications worldwide between 2013 and 2023. Annual filings grew from 732 in 2013 to 809 in 2023 (+11%), peaking at 1,000 applications in 2017. The most active applicants in class F23 are GE (GENERAL ELECTRIC COMPANY) (2,581 applications), UNITED TECHNOLOGIES CORPORATION (UTC) (1,180 applications) and SIEMENS (1,157 applications).
Source: EPO PATSTAT, worldwide filings
17 direct subcodes
Child Classifications
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- F23K 2900/00001 Treating the fuel, either liquid or gaseous, with sound waves to enhance fuel properties
- F23K 2900/00002 Treating the fuel, either liquid or gaseous, with far-infrared radiations [FIR] to enhance fuel properties
- F23K 2900/01001 Cleaning solid fuel before combustion to achieve reduced emissions
- F23K 2900/01002 Treating solid fuel with electromagnetic fields before combustion
- F23K 2900/01003 Pulverizing solid fuel in vacuum or a reduced pressure environment
- F23K 2900/01041 Heating by using exhaust gas heat
- F23K 2900/03001 Airlock sections in solid fuel supply lines
- F23K 2900/05001 Control or safety devices in gaseous or liquid fuel supply lines
- F23K 2900/05002 Valves for gaseous fuel supply lines
- F23K 2900/05003 Non-continuous fluid fuel supply
- F23K 2900/05004 Mixing two or more fluid fuels
- F23K 2900/05081 Treating the fuel with catalyst to enhance combustion
- F23K 2900/05082 Removing gaseous substances from liquid fuel line, e.g. oxygen
- F23K 2900/05083 Separating watery fractions from liquid fuel
- F23K 2900/05084 Creating a combustible foam of liquid fuels and air
- F23K 2900/05141 Control or safety devices in liquid fuel supply line
- F23K 2900/05142 Special materials for liquid fuel supply lines
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