CPC Subgroup
C07C 37/045 by substitution of a group bound to the ring by nitrogen
Full Title
Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring > by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis > by substitution of a group bound to the ring by nitrogen
1 direct subcode
Child Classifications
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- C07C 37/05 by substitution of a NH2 group
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