CPC Subgroup
C07D 497/02 in which the condensed system contains two hetero rings
Full Title
Heterocyclic compounds containing in the condensed system at least one hetero ring having oxygen and sulfur atoms as the only ring hetero atoms > in which the condensed system contains two hetero rings
4 direct subcodes
Child Classifications
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- C07D 497/04 Ortho-condensed systems
- C07D 497/06 Peri-condensed systems
- C07D 497/08 Bridged systems
- C07D 497/10 Spiro-condensed systems
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