CPC Subgroup
F23D 14/48 Nozzles
Full Title
Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid > Details > Nozzles
4 direct subcodes
Child Classifications
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- F23D 14/50 Cleaning devices therefor
- F23D 14/52 for torches; for blow-pipes
- F23D 14/56 for spreading the flame over an area, e.g. for desurfacing of solid material, for surface hardening or for heating workpieces
- F23D 14/58 characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
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