Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
C12N 1/38

Chemical stimulation of growth or activity by addition of chemical compounds which are not essential growth factors; Stimulation of growth by removal of a chemical compound (C12N1/34 takes precedence)

Introduced: January 1980

Title

Titles differ between systems:

IPC: Chemical stimulation of growth or activity by addition of chemical compounds which are not essential growth factors; Stimulation of growth by removal of a chemical compound

CPC: Chemical stimulation of growth or activity by addition of chemical compounds which are not essential growth factors; Stimulation of growth by removal of a chemical compound (C12N1/34 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Microorganisms; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor > Chemical stimulation of growth or activity by addition of chemical compounds which are not essential growth factors; Stimulation of growth by removal of a chemical compound

CPC:

Microorganisms; Compositions thereof (medicinal preparations containing material from protozoa, bacteria or viruses A61K35/66, from algae A61K36/02, from fungi A61K36/06; preparing medicinal bacterial antigen or antibody compositions, e.g. bacterial vaccines, A61K39/00); Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor > Chemical stimulation of growth or activity by addition of chemical compounds which are not essential growth factors; Stimulation of growth by removal of a chemical compound (C12N1/34 takes precedence)

Additional Content IPC

Essential growth factor essential growth factors Indispensable growth factor

No child classifications to compare. This is a leaf node in both 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