CPC Main Group Additional Only
F23G 2209/00 Specific waste
Filing statistics
CPC F23G 2209/00 belongs to the parent subclass F23G, which recorded 27,613 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,188 in 2013 to 2,441 in 2023 (+105%), peaking at 3,992 applications in 2020. The most active applicants in class F23 are GE (GENERAL ELECTRIC COMPANY) (2,581 applications), UNITED TECHNOLOGIES CORPORATION (UTC) (1,180 applications) and SIEMENS (1,157 applications).
Source: EPO PATSTAT, worldwide filings
11 direct subcodes
Child Classifications
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- F23G 2209/10 Liquid waste
- F23G 2209/12 Sludge, slurries or mixtures of liquids
- F23G 2209/14 Gaseous waste or fumes
- F23G 2209/16 Warfare materials, e.g. ammunition
- F23G 2209/18 Radioactive materials
- F23G 2209/20 Medical materials
- F23G 2209/22 Waste papers
- F23G 2209/24 Contaminated soil; foundry sand
- F23G 2209/26 Biowaste
- F23G 2209/28 Plastics or rubber like materials
- F23G 2209/30 Solid combustion residues, e.g. bottom or flyash
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