Destroying solid waste or transforming solid waste into something useful or harmless

Introduced: January 1980

Last revised: January 2022

Classification Context

Section:: PERFORMING OPERATIONS; TRANSPORTING
Class:: DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
Subclass:: DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR

Filing statistics

IPC B09B 3/00 belongs to the parent subclass B09B, which recorded 69,632 patent applications worldwide between 2013 and 2023. Annual filings grew from 3,588 in 2013 to 8,905 in 2023 (+148%), peaking at 10,040 applications in 2022. The most active applicants in class B09 are CHINESE ACADEMY OF SCIENCES (776 applications), TAIHEIYO CEMENT CORPORATION (279 applications) and BEIJING GEOENVIRON ENGINEERING & TECHNOLOGY (247 applications).

Source: EPO PATSTAT, worldwide filings

8 direct subcodes

Child Classifications

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B09B 3/1 involving an adsorption step
B09B 3/2 Agglomeration, binding or encapsulation of solid waste
B09B 3/3 involving mechanical treatment
B09B 3/4 involving thermal treatment, e.g. evaporation
B09B 3/5 involving radiation, e.g. electro-magnetic waves
B09B 3/6 Biochemical treatment, e.g. by using enzymes
B09B 3/7 Chemical treatment, e.g. pH adjustment or oxidation
B09B 3/8 involving an extraction step

Top Applicants

Top 10 applicants by patent filingsfor 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