Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
C07D 223/30

with hetero atoms directly attached to the ring nitrogen atom

Full Title

Heterocyclic compounds containing seven-membered rings having one nitrogen atom as the only ring hetero atom > condensed with carbocyclic rings or ring systems > Dibenzazepines; Hydrogenated dibenzazepines > Dibenz [b, f] azepines; Hydrogenated dibenz [b, f] azepines > with hetero atoms directly attached to the ring nitrogen atom

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