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PCE
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DIFF Subgroup
C07K 5/10

Tetrapeptides

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Peptides having up to four amino acids in a fully defined sequence; Derivatives thereof > containing only normal peptide links > Tetrapeptides

CPC:

Peptides containing up to four amino acids in a fully defined sequence; Derivatives thereof > containing only normal peptide links > Tetrapeptides

Of 10 combined children, 0 exist in both systems.

5 codes are CPC-only extensions, 5 exist only in IPC.

IPC defines codes here since 1995.

Child Classifications

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  • C07K 5/1019 CPC only CPC only
  • C07K 5/1021 CPC only CPC only
  • C07K 5/1024 CPC only CPC only
  • C07K 5/1027 CPC only CPC only
  • C07K 5/103 the side chain of the first amino acid being acyclic, e.g. Gly, Ala since 1995 IPC only IPC only
  • C07K 5/107 the side chain of the first amino acid containing carbocyclic rings, e.g. Phe, Tyr since 1995 IPC only IPC only
  • C07K 5/11 the side chain of the first amino acid containing more amino groups than carboxyl groups, or derivatives thereof, e.g. Lys, Arg since 1995 IPC only IPC only
  • C07K 5/113 the side chain of the first amino acid containing more carboxyl groups than amino groups, or derivatives thereof, e.g. Asp, Glu, Asn since 1995 IPC only IPC only
  • C07K 5/117 the first amino acid being heterocyclic, e.g. Pro, His, Trp since 1995 IPC only IPC only

Top Applicants

Top Applicants (IPC)

Class C07,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 12,697
  2. ROCHE CH 11,347
  3. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 11,024
  4. NOVARTIS CH 9,356
  5. BASF (BADISCHE ANILIN & SODA FABRIK) DE 8,531
  6. BRISTOL-MYERS SQUIBB COMPANY US 7,320
  7. LG CHEM KR 7,245
  8. REGENERON PHARMACEUTICALS US 6,816
  9. HARVARD UNIVERSITY US 6,190
  10. GENENTECH US 5,922

Top Applicants (CPC)

Class C07,2013–2023, worldwide · Source: EPO PATSTAT

  1. ROCHE CH 12,683
  2. NOVARTIS CH 10,775
  3. CHINESE ACADEMY OF SCIENCES 10,619
  4. BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,511
  5. REGENERON PHARMACEUTICALS US 8,426
  6. BRISTOL-MYERS SQUIBB COMPANY US 7,979
  7. LG CHEM KR 7,978
  8. HARVARD UNIVERSITY US 7,706
  9. UNIVERSITY OF CALIFORNIA US 7,455
  10. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,219