CPC Main Group Additional Only
F23K 2900/00 Special features of, or arrangements for fuel supplies
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