CPC Main Group Additional Only
F23N 2237/00 Controlling
12 direct subcodes
Child Classifications
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- F23N 2237/02 two or more burners
- F23N 2237/04 at two or more different localities
- F23N 2237/06 two predeterming temperatures, e.g. day-night
- F23N 2237/08 two or more different types of fuel simultaneously
- F23N 2237/10 High or low fire
- F23N 2237/12 catalytic burners
- F23N 2237/14 burners with gasification or vaporizer elements
- F23N 2237/16 secondary air
- F23N 2237/18 fluidized bed burners
- F23N 2237/20 one or more bypass conduits
- F23N 2237/22 water injection
- F23N 2237/24 height of 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