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PCE
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DIFF Subgroup
C12N 9/48

acting on peptide bonds (3.4)

Introduced: January 1980

Title

Titles differ between systems:

IPC: acting on peptide bonds, e.g. thromboplastin, leucine aminopeptidase (3.4)

CPC: acting on peptide bonds (3.4)

Full Title

Full titles differ between systems:

IPC:

Enzymes, e.g. ligases (6.); Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating, or purifying enzymes > Hydrolases (3.) > acting on peptide bonds, e.g. thromboplastin, leucine aminopeptidase (3.4)

CPC:

Enzymes; Proenzymes; Compositions thereof (preparations containing enzymes for cleaning teeth A61K8/66, A61Q11/00; medicinal preparations containing enzymes or proenzymes A61K38/43; enzyme containing detergent compositions C11D; ); Processes for preparing, activating, inhibiting, separating or purifying enzymes (preparation of malt C12C1/00) > Hydrolases (3) > acting on peptide bonds (3.4)

Of 8 combined children, 1 exist in both systems.

1 codes are CPC-only extensions, 6 exist only in IPC.

IPC defines codes here since 1980.

Child Classifications

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  • C12N 9/485 CPC only CPC only
  • C12N 9/66 Elastase since 1980 IPC only IPC only
  • C12N 9/68 Plasmin, i.e. fibrinolysin since 1980 IPC only IPC only
  • C12N 9/7 Streptokinase since 1980 IPC only IPC only
  • C12N 9/72 Urokinase since 1980 IPC only IPC only
  • C12N 9/74 Thrombin since 1980 IPC only IPC only
  • C12N 9/76 Trypsin; Chymotrypsin since 1980 IPC only IPC only

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