DIFF Main Group
B09B 3/00 Destroying solid waste or transforming solid waste into something useful or harmless
Introduced: January 1980
Of 10 combined children, 8 exist in both systems.
2 codes are CPC-only extensions.
3 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2022.
Child Classifications
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- B09B 3/20 Agglomeration, binding or encapsulation of solid waste since 2022 IPC+CPC Available in IPC and CPC
- B09B 3/30 involving mechanical treatment (involving an extraction step B09B3/80) since 2022 IPC+CPC Available in IPC and CPC
- 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) since 2022 IPC+CPC Available in IPC and CPC
- B09B 3/50 involving radiation, e.g. electro-magnetic waves since 2022 IPC+CPC Available in IPC and CPC
- B09B 3/70 Chemical treatment, e.g. pH adjustment or oxidation (involving an extraction step B09B3/80) since 2022 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class B09,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 776
- TAIHEIYO CEMENT CORPORATION 279
- BEIJING GEOENVIRON ENGINEERING & TECHNOLOGY 247
- ZHEJIANG UNIVERSITY 232
- CENTRAL SOUTH UNIVERSITY 212
- KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 208
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 203
- CHANGZHOU UNIVERSITY 172
- BCEG ENVIRONMENTAL REMEDIATION COMPANY 167
- UNI-CHARM CORPORATION JP 165
Top Applicants (CPC)
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