F23D 14/02 Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
Full Title
Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid > Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
Filing statistics
CPC F23D 14/02 belongs to the parent subclass F23D, which recorded 25,989 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,982 in 2013 to 2,106 in 2023 (+6%), peaking at 2,887 applications in 2018. 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
1 direct subcode
Child Classifications
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- F23D 14/04 induction type, e.g. Bunsen burner
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