IPC Main Group
F23D 14/00 Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
Introduced: January 1985
Last revised: January 2006
Classification Context
- Section:
- MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- Class:
- COMBUSTION APPARATUS; COMBUSTION PROCESSES
- Subclass:
- BURNERS
Filing statistics
IPC F23D 14/00 belongs to the parent subclass F23D, which recorded 48,008 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,116 in 2013 to 4,648 in 2023 (+49%), peaking at 5,460 applications in 2020. The most active applicants in class F23 are GE (GENERAL ELECTRIC COMPANY) (2,124 applications), XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY (1,369 applications) and NINGBO FOTILE KITCHENWARE COMPANY (1,363 applications).
Source: EPO PATSTAT, worldwide filings
10 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- F23D 14/02 Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D 14/12 Radiant burners
- F23D 14/2 Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D 14/26 with provision for a retention flame
- F23D 14/28 in association with a gaseous fuel source, e.g. acetylene generator, or a container for liquefied gas
- F23D 14/3 Inverted burners, e.g. for illumination
- F23D 14/32 using a mixture of gaseous fuel and pure oxygen or oxygen-enriched air
- F23D 14/34 Burners specially adapted for use with means for pressurising the gaseous fuel or the combustion air
- F23D 14/38 Torches, e.g. for brazing or heating
- F23D 14/46 Details
Top Applicants
Top 10 applicants by patent filingsfor class F23, 2013–2023, worldwide · Source: EPO PATSTAT
- GE (GENERAL ELECTRIC COMPANY) US 2,124
- XIAN THERMAL POWER RESEARCH INSTITUTE COMPANY 1,369
- NINGBO FOTILE KITCHENWARE COMPANY 1,363
- SIEMENS DE 997
- UNITED TECHNOLOGIES CORPORATION (UTC) US 937
- GE (GENERAL ELECTRIC COMPANY) 898
- VATTI 815
- CHINESE ACADEMY OF SCIENCES 719
- RINNAI COMPANY 708
- MITSUBISHI HITACHI POWER SYSTEMS 670