DIFF Subgroup
C07C 309/28 having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
Introduced: January 1990
Full Title
Sulfonic acids; Halides, esters, or anhydrides thereof > Sulfonic acids > having sulfo groups bound to carbon atoms of six-membered aromatic rings of a carbon skeleton
IPC and CPC are identically structured here. All 8 subcodes exist in both systems.
IPC defines codes here since 1990.
Child Classifications
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- C07C 309/29 of non-condensed six-membered aromatic rings since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/33 of six-membered aromatic rings being part of condensed ring systems since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/39 containing halogen atoms bound to the carbon skeleton since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/40 containing nitro or nitroso groups bound to the carbon skeleton since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/41 containing singly-bound oxygen atoms bound to the carbon skeleton since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/44 containing doubly-bound oxygen atoms bound to the carbon skeleton since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/45 containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/57 containing carboxyl groups bound to the carbon skeleton 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