IPC Subgroup
C07C 309/03 of an acyclic saturated carbon skeleton
Introduced: January 1990
Last revised: January 2006
Full Title
Sulfonic acids; Halides, esters, or anhydrides thereof > Sulfonic acids > having sulfo groups bound to acyclic carbon atoms > of an acyclic saturated carbon skeleton
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- ACYCLIC OR CARBOCYCLIC COMPOUNDS
6 direct subcodes
Child Classifications
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- C07C 309/04 containing only one sulfo group
- C07C 309/05 containing at least two sulfo groups bound to the carbon skeleton
- C07C 309/06 containing halogen atoms, or nitro or nitroso groups bound to the carbon skeleton
- C07C 309/07 containing oxygen atoms bound to the carbon skeleton
- C07C 309/13 containing nitrogen atoms, not being part of nitro or nitroso groups, bound to the carbon skeleton
- C07C 309/17 containing carboxyl groups bound to the carbon skeleton
Top Applicants
Top 10 applicants by patent filingsfor 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