CPC Subgroup Additional Only
F23D 2203/10 Flame diffusing means
Full Title
Gaseous fuel burners > Flame diffusing means
8 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- F23D 2203/101 characterised by surface shape
- F23D 2203/102 using perforated plates
- F23D 2203/103 using screens
- F23D 2203/104 Grids, e.g. honeycomb grids
- F23D 2203/105 Porous plates
- F23D 2203/106 Assemblies of different layers
- F23D 2203/107 coated with catalysts
- F23D 2203/108 with stacked sheets or strips forming the outlets
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