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DIFF Subclass Not Allocatable
C12Y

ENZYMES

Description

C12Y covers enzyme classifications organized by enzymatic function and reaction type, enabling detailed categorization of biocatalysts across industrial and research applications. This subclass structures enzyme patents according to the Enzyme Commission (EC) classification system, facilitating precise identification of specific enzyme activities such as oxidoreductases, transferases, hydrolases, and ligases. It encompasses enzymes used in biotechnology processes, pharmaceutical synthesis, food production, diagnostics, and genetic engineering, as well as novel enzymes derived from natural or engineered sources. The classification distinguishes between enzyme types by catalytic mechanism rather than source organism, making it essential for patent professionals navigating enzyme-related inventions in biochemical and biotechnological fields.

Of 66 combined children, 0 exist in both systems.

66 codes are CPC-only extensions.

Top Applicants

Top Applicants (IPC)

Class C12,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 10,330
  2. HARVARD UNIVERSITY US 7,308
  3. UNIVERSITY OF CALIFORNIA US 6,383
  4. JIANGNAN UNIVERSITY 5,144
  5. MONSANTO TECHNOLOGY US 4,121
  6. PIONEER HI-BRED INTERNATIONAL US 3,630
  7. REGENERON PHARMACEUTICALS US 3,515
  8. CNRS (CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE) FR 3,499
  9. INSERM (INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE) FR 3,371
  10. CJ CHEILJEDANG CORPORATION KR 3,361

Top Applicants (CPC)

Class C12,2013–2023, worldwide · Source: EPO PATSTAT

  1. HARVARD UNIVERSITY US 8,321
  2. CHINESE ACADEMY OF SCIENCES 7,486
  3. UNIVERSITY OF CALIFORNIA US 7,320
  4. REGENERON PHARMACEUTICALS US 5,003
  5. INSERM (INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE) FR 4,292
  6. UNIVERSITY OF PENNSYLVANIA US 4,213
  7. CNRS (CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE) FR 4,113
  8. JIANGNAN UNIVERSITY 3,961
  9. ROCHE CH 3,792
  10. ILLUMINA US 3,692