CPC Main Group Additional Only
F23G 2203/00 Furnace arrangements
12 direct subcodes
Child Classifications
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- F23G 2203/10 Stoker grate furnace
- F23G 2203/101 with stepped or inclined grate
- F23G 2203/103 with roller grate
- F23G 2203/105 with endless chain or travelling grate
- F23G 2203/107 with vibrating grate
- F23G 2203/20 Rotary drum furnace
- F23G 2203/30 Cyclonic combustion furnace
- F23G 2203/40 Stationary bed furnace
- F23G 2203/50 Fluidised bed furnace
- F23G 2203/60 Mobile furnace
- F23G 2203/70 Modular furnace
- F23G 2203/80 Furnaces with other means for moving the waste through the combustion zone
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