CPC Subgroup
C07C 35/23 with hydroxy on a condensed ring system having two rings
Full Title
Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a ring other than a six-membered aromatic ring > polycyclic, at least one hydroxy group bound to a condensed ring system > with hydroxy on a condensed ring system having two rings
7 direct subcodes
Child Classifications
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- C07C 35/24 the condensed ring system containing five carbon atoms
- C07C 35/27 the condensed ring system containing six carbon atoms
- C07C 35/28 the condensed ring system containing seven carbon atoms
- C07C 35/31 the condensed ring system containing eight carbon atoms
- C07C 35/32 the condensed ring system being a (4.3.0) system, e.g. indenols
- C07C 35/34 the condensed ring system being a (5.3.0.) system, e.g. azulenols
- C07C 35/36 the condensed ring system being a (4.4.0) system, e.g. naphols
Top Applicants
Top 10 applicants by patent filingsfor 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