Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
C12N 9/10

Transferases (2.) (ribonucleases C12N9/22)

Introduced: January 1980

Title

Titles differ between systems:

IPC: Transferases (2.)

CPC: Transferases (2.) (ribonucleases C12N9/22)

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 > Transferases (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) > Transferases (2.) (ribonucleases C12N9/22)

CPC subdivides this area 8x more granularly than IPC with 7 additional codes.

7 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

Navigate with arrow keys, Enter to open

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