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DIFF Subgroup
C07C 237/28

having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a non-condensed six-membered aromatic ring of the carbon skeleton

Introduced: January 1990

Full Title

Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by amino groups > having the carbon atom of at least one of the carboxamide groups bound to a carbon atom of a non-condensed six-membered aromatic ring of the carbon skeleton

IPC and CPC are identically structured here. All 9 subcodes exist in both systems.

IPC defines codes here since 1990.

Child Classifications

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  • C07C 237/30 having the nitrogen atom of the carboxamide group bound to hydrogen atoms or to acyclic carbon atoms since 1990 IPC+CPC Available in IPC and CPC
  • C07C 237/32 having the nitrogen atom of the carboxamide group bound to an acyclic carbon atom of a hydrocarbon radical substituted by oxygen atoms since 1990 IPC+CPC Available in IPC and CPC
  • C07C 237/34 having the nitrogen atom of the carboxamide group bound to an acyclic carbon atom of a hydrocarbon radical substituted by nitrogen atoms not being part of nitro or nitroso groups since 1990 IPC+CPC Available in IPC and CPC
  • C07C 237/36 having the nitrogen atom of the carboxamide group bound to an acyclic carbon atom of a hydrocarbon radical substituted by carboxyl groups since 1990 IPC+CPC Available in IPC and CPC
  • C07C 237/38 having the nitrogen atom of the carboxamide group bound to a carbon atom of a ring other than a six-membered aromatic ring since 1990 IPC+CPC Available in IPC and CPC
  • C07C 237/40 having the nitrogen atom of the carboxamide group bound to a carbon atom of a six-membered aromatic ring since 1990 IPC+CPC Available in IPC and CPC
  • C07C 237/42 having nitrogen atoms of amino groups bound to the carbon skeleton of the acid part, further acylated since 1990 IPC+CPC Available in IPC and CPC
  • C07C 237/44 having carbon atoms of carboxamide groups, amino groups and singly-bound oxygen atoms bound to carbon atoms of the same non-condensed six-membered aromatic ring since 1990 IPC+CPC Available in IPC and CPC
  • C07C 237/46 having carbon atoms of carboxamide groups, amino groups and at least three atoms of bromine or iodine, bound to carbon atoms of the same non-condensed six-membered aromatic ring since 1990 IPC+CPC Available in IPC and CPC

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