DIFF Main Group
C07C 235/00 Carboxylic acid amides, the carbon skeleton of the acid part being further substituted by oxygen atoms
Introduced: January 1990
IPC and CPC are identically structured here. All 7 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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- C07C 235/02 having carbon atoms of carboxamide groups bound to acyclic carbon atoms and singly-bound oxygen atoms bound to the same carbon skeleton since 1990 IPC+CPC Available in IPC and CPC
- C07C 235/40 having carbon atoms of carboxamide groups bound to carbon atoms of rings other than six-membered aromatic rings and singly-bound oxygen atoms bound to the same carbon skeleton since 1990 IPC+CPC Available in IPC and CPC
- C07C 235/42 having carbon atoms of carboxamide groups bound to carbon atoms of six-membered aromatic rings and singly-bound oxygen atoms bound to the same carbon skeleton since 1990 IPC+CPC Available in IPC and CPC
- C07C 235/68 having the nitrogen atom of at least one of the carboxamide groups bound to an acyclic carbon atom and to a carbon atom of a six-membered aromatic ring wherein at least one ortho-hydrogen atom has been replaced since 1990 IPC+CPC Available in IPC and CPC
- C07C 235/70 having carbon atoms of carboxamide groups and doubly-bound oxygen atoms bound to the same carbon skeleton since 1990 IPC+CPC Available in IPC and CPC
- C07C 235/86 having the nitrogen atom of at least one of the carboxamide groups quaternised since 1990 IPC+CPC Available in IPC and CPC
- C07C 235/88 having the nitrogen atom of at least one of the carboxamide groups further acylated since 1990 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C07,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 12,697
- ROCHE CH 11,347
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 11,024
- NOVARTIS CH 9,356
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 8,531
- BRISTOL-MYERS SQUIBB COMPANY US 7,320
- LG CHEM KR 7,245
- REGENERON PHARMACEUTICALS US 6,816
- HARVARD UNIVERSITY US 6,190
- GENENTECH US 5,922
Top Applicants (CPC)
Class C07,2013–2023, worldwide · Source: EPO PATSTAT
- ROCHE CH 12,683
- NOVARTIS CH 10,775
- CHINESE ACADEMY OF SCIENCES 10,619
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,511
- REGENERON PHARMACEUTICALS US 8,426
- BRISTOL-MYERS SQUIBB COMPANY US 7,979
- LG CHEM KR 7,978
- HARVARD UNIVERSITY US 7,706
- UNIVERSITY OF CALIFORNIA US 7,455
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,219