DIFF Subgroup
C07C 23/20 with condensed rings none of which is aromatic
Introduced: September 1968
Full Title
Compounds containing at least one halogen atom bound to a ring other than a six-membered aromatic ring > Polycyclic halogenated hydrocarbons > with condensed rings none of which is aromatic
IPC and CPC are identically structured here. All 9 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- C07C 23/27 with a bicyclo ring system containing seven carbon atoms since 1990 IPC+CPC Available in IPC and CPC
- C07C 23/32 with a bicyclo ring system containing eight carbon atoms IPC+CPC Available in IPC and CPC
- C07C 23/34 Halogenated completely or partially hydrogenated indenes IPC+CPC Available in IPC and CPC
- C07C 23/36 Halogenated completely or partially hydrogenated naphthalenes 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