IPC Subgroup
C07C 211/32 containing dibenzocycloheptane or dibenzocycloheptene ring systems or condensed derivatives thereof
Introduced: January 1990
Last revised: January 2006
Full Title
Compounds containing amino groups bound to a carbon skeleton > having amino groups bound to acyclic carbon atoms > of an unsaturated carbon skeleton containing at least one six-membered aromatic ring > the six-membered aromatic ring being part of a condensed ring system formed by at least three rings > containing dibenzocycloheptane or dibenzocycloheptene ring systems or condensed derivatives thereof
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- ACYCLIC OR CARBOCYCLIC COMPOUNDS
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