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CPC Main Group Additional Only
B09C 2101/00

In situ

Filing statistics

CPC B09C 2101/00 belongs to the parent subclass B09C, which recorded 17,375 patent applications worldwide between 2013 and 2023. Annual filings grew from 555 in 2013 to 1,774 in 2023 (+220%), peaking at 2,398 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

Top Applicants

Top 10 applicants by patent filingsfor class B09, 2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 533
  2. UNI-CHARM CORPORATION JP 166
  3. CENTRAL SOUTH UNIVERSITY 160
  4. KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 151
  5. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 147
  6. ZHEJIANG UNIVERSITY 144
  7. JX NIPPON MINING & METALS CORPORATION JP 141
  8. BEIJING GEOENVIRON ENGINEERING & TECHNOLOGY 139
  9. CHANGZHOU UNIVERSITY 128
  10. NANJING INSTITUTE OF ENVIRONMENTAL SCIENCES, MEE 124