CPC Main Group Additional Only
F23G 2900/00 Special features of, or arrangements for incinerators
36 direct subcodes
Child Classifications
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- F23G 2900/00001 Exhaust gas recirculation
- F23G 2900/50001 Combination of two or more furnaces
- F23G 2900/50002 Burning with downwards directed draft through the waste mass
- F23G 2900/50003 Waste oxidation, pyrolysis or gasification in water under supercritical conditions
- F23G 2900/50004 Furnace with inclined hearth
- F23G 2900/50005 Waste in combustion chamber supported on bed made of special materials
- F23G 2900/50006 Combustion chamber walls reflecting radiant energy within the chamber
- F23G 2900/50007 Co-combustion of two or more kinds of waste, separately fed into the furnace
- F23G 2900/50008 Combustion of waste suspended or lifted by upward gas flows
- F23G 2900/50009 Furnace with progressive waste movements in vertical or steeply inclined direction
- F23G 2900/50201 Waste pyrolysis, gasification or cracking by indirect heat transfer
- F23G 2900/50202 Waste pyrolysis, gasification or cracking in presence of catalysts
- F23G 2900/50203 Waste pyrolysis, gasification or cracking in a mechanically fluidised bed, e.g. obtained by a centrifugal force
- F23G 2900/50204 Waste pre-treatment by pyrolysis, gasification or cracking
- F23G 2900/50205 Waste pre-treatment by pyrolysis, gasification or cracking followed by condensation of gas into combustible oil or fat
- F23G 2900/50206 Pelletising waste before combustion
- F23G 2900/50207 Thermoforming of plastic waste materials before combustion
- F23G 2900/50208 Biologic treatment before burning, e.g. biogas generation
- F23G 2900/50209 Compacting waste before burning
- F23G 2900/50211 Evaporating, e.g. liquid waste before burning
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