CPC Subgroup
C07C 63/42 containing three or more rings
Full Title
Compounds having carboxyl groups bound to a carbon atoms of six-membered aromatic rings > Polycyclic acids > with carboxyl groups bound to condensed ring systems > containing three or more rings
3 direct subcodes
Child Classifications
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- C07C 63/44 containing one carboxyl group
- C07C 63/46 containing two carboxyl groups both bound to carbon atoms of the condensed ring system
- C07C 63/48 containing three or more carboxyl groups all bound to carbon atoms of the condensed ring system
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