CPC Subgroup
C07D 333/42 with nitro or nitroso radicals directly attached to ring carbon atoms
Full Title
Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom > not condensed with other rings > not substituted on the ring sulphur atom > with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms > with nitro or nitroso radicals directly attached to ring carbon atoms
1 direct subcode
Child Classifications
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- C07D 333/44 attached in position 5
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