DIFF Subgroup
C07C 309/45 containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the 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 > containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
IPC and CPC are identically structured here. All 6 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1990.
Child Classifications
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- C07C 309/46 having the sulfo groups bound to carbon atoms of non-condensed six-membered aromatic rings since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/47 having at least one of the sulfo groups bound to a carbon atom of a six-membered aromatic ring being part of a condensed ring system since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/48 the carbon skeleton being further substituted by halogen atoms since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/49 the carbon skeleton being further substituted by singly-bound oxygen atoms since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/51 at least one of the nitrogen atoms being part of any of the groups [IMAGE cpc-sch-C07C-0976.gif], X being a hetero atom, Y being any atom since 1990 IPC+CPC Available in IPC and CPC
- C07C 309/52 the carbon skeleton being further substituted by doubly-bound oxygen atoms 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