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DIFF Subgroup
C12N 9/24

acting on glycosyl compounds (3.2)

Introduced: January 1980

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 glycosyl compounds (3.2)

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 glycosyl compounds (3.2)

Of 8 combined children, 0 exist in both systems.

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

IPC defines codes here since 1980.

Child Classifications

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  • C12N 9/2497 CPC only CPC only
  • C12N 9/36 acting on beta-1, 4 bonds between N-acetylmuramic acid and 2-acetylamino 2-deoxy-D-glucose, e.g. lysozyme since 1980 IPC only IPC only
  • C12N 9/38 acting on beta-galactose-glycoside bonds, e.g. beta-galactosidase since 1980 IPC only IPC only
  • C12N 9/4 acting on alpha-galactose-glycoside bonds, e.g. alpha-galactosidase since 1980 IPC only IPC only
  • C12N 9/42 acting on beta-1, 4-glucosidic bonds, e.g. cellulase 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