CPC Subgroup Additional Only
F23D 2900/14 Special features of gas burners
Full Title
Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas > Special features of gas burners
23 direct subcodes
Child Classifications
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- F23D 2900/14001 Sealing or support of burner plate borders
- F23D 2900/14002 of premix or non premix types, specially adapted for the combustion of low heating value [LHV] gas
- F23D 2900/14003 with more than one nozzle
- F23D 2900/14004 with radially extending gas distribution spokes
- F23D 2900/14005 Rotary gas burner
- F23D 2900/14021 Premixing burners with swirling or vortices creating means for fuel or air
- F23D 2900/14041 Segmented or straight line assembly of burner bars
- F23D 2900/14042 Star shaped assembly of burner bars or arms
- F23D 2900/14061 for cooking ranges having a coated burner cap
- F23D 2900/14062 for cooking ranges having multiple flame rings
- F23D 2900/14063 for cooking ranges having one flame ring fed by multiple venturis
- F23D 2900/14064 Burner heads of non circular shape
- F23D 2900/1412 for radiant burners
- F23D 2900/14241 Post-mixing with swirling means
- F23D 2900/14381 Single operating member opening and closing fuel and oxidant supply valves in torches
- F23D 2900/14481 Burner nozzles incorporating flow adjusting means
- F23D 2900/14482 Burner nozzles incorporating a fluidic oscillator
- F23D 2900/14581 with outlets consisting of a bed of irregular particles, e.g. glass
- F23D 2900/14582 with outlets consisting of layers of spherical particles
- F23D 2900/14641 with gas distribution manifolds or bars provided with a plurality of nozzles
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