CPC Main Group
B09B 3/00 Destroying solid waste or transforming solid waste into something useful or harmless
Filing statistics
CPC B09B 3/00 belongs to the parent subclass B09B, which recorded 36,182 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,635 in 2013 to 4,576 in 2023 (+180%), peaking at 4,905 applications in 2020. The most active applicants in class B09 are CHINESE ACADEMY OF SCIENCES (533 applications), UNI-CHARM CORPORATION (166 applications) and CENTRAL SOUTH UNIVERSITY (160 applications).
Source: EPO PATSTAT, worldwide filings
10 direct subcodes
Child Classifications
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- B09B 3/10 involving an adsorption step
- B09B 3/20 Agglomeration, binding or encapsulation of solid waste
- B09B 3/30 involving mechanical treatment (involving an extraction step B09B3/80)
- B09B 3/40 involving thermal treatment, e.g. evaporation (processes using mineral binders involving a melting or softening step B09B3/29; involving radiation B09B3/50)
- B09B 3/50 involving radiation, e.g. electro-magnetic waves
- B09B 3/60 Biochemical treatment, e.g. by using enzymes
- B09B 3/70 Chemical treatment, e.g. pH adjustment or oxidation (involving an extraction step B09B3/80)
- B09B 3/80 involving an extraction step
Top Applicants
Top 10 applicants by patent filingsfor class B09, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 533
- UNI-CHARM CORPORATION JP 166
- CENTRAL SOUTH UNIVERSITY 160
- KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 151
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 147
- ZHEJIANG UNIVERSITY 144
- JX NIPPON MINING & METALS CORPORATION JP 141
- BEIJING GEOENVIRON ENGINEERING & TECHNOLOGY 139
- CHANGZHOU UNIVERSITY 128
- NANJING INSTITUTE OF ENVIRONMENTAL SCIENCES, MEE 124