Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
C07D 233/12

with substituted hydrocarbon radicals attached to ring nitrogen atoms

Full Title

Heterocyclic compounds containing 1,3-diazole or hydrogenated 1,3-diazole rings, not condensed with other rings > having one double bond between ring members or between a ring member and a non-ring member > with only hydrogen atoms or radicals containing only hydrogen and carbon atoms, directly attached to ring carbon atoms > with alkyl radicals, containing more than four carbon atoms, directly attached to ring carbon atoms > with substituted hydrocarbon radicals attached to ring nitrogen atoms

3 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • C07D 233/14 Radicals substituted by oxygen atoms
  • C07D 233/16 Radicals substituted by nitrogen atoms
  • C07D 233/18 Radicals substituted by carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals

Top Applicants

Top 10 applicants by patent filingsfor class C07, 2013–2023, worldwide · Source: EPO PATSTAT

  1. ROCHE CH 12,683
  2. NOVARTIS CH 10,775
  3. CHINESE ACADEMY OF SCIENCES 10,619
  4. BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,511
  5. REGENERON PHARMACEUTICALS US 8,426
  6. BRISTOL-MYERS SQUIBB COMPANY US 7,979
  7. LG CHEM KR 7,978
  8. HARVARD UNIVERSITY US 7,706
  9. UNIVERSITY OF CALIFORNIA US 7,455
  10. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,219