CPC Main Group Additional Only
F23G 2201/00 Pretreatment
9 direct subcodes
Child Classifications
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- F23G 2201/10 Drying by heat
- F23G 2201/20 Dewatering by mechanical means
- F23G 2201/30 Pyrolysing
- F23G 2201/40 Gasification
- F23G 2201/50 Devolatilising; from soil, objects
- F23G 2201/60 Separating
- F23G 2201/70 Blending
- F23G 2201/80 Shredding
- F23G 2201/90 Cooling
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