CPC Subgroup
B09B 3/70 Chemical treatment, e.g. pH adjustment or oxidation (involving an extraction step B09B3/80)
Full Title
Destroying solid waste or transforming solid waste into something useful or harmless > Chemical treatment, e.g. pH adjustment or oxidation (involving an extraction step B09B3/80)
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