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DIFF Main Group
C12N 9/00

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)

Introduced: January 1980

Title

Titles differ between systems:

IPC: Enzymes, e.g. ligases (6.); Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating, or purifying enzymes

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)

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

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)

Of 12 combined children, 8 exist in both systems.

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

3 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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  • C12N 9/0002 CPC only CPC only
  • C12N 9/88 Lyases (4.) since 1980 IPC+CPC Available in IPC and CPC
  • C12N 9/93 CPC only CPC only
  • C12N 9/94 Pancreatin since 1980 IPC+CPC Available in IPC and CPC
  • C12N 9/96 Stabilising an enzyme by forming an adduct or a composition; Forming enzyme conjugates since 1980 IPC+CPC Available in IPC and CPC
  • C12N 9/98 Preparation of granular or free-flowing enzyme compositions (C12N9/96 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
  • C12N 9/99 Enzyme inactivation by chemical treatment since 1980 IPC+CPC Available in IPC and CPC

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