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PCE
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CPC Subgroup
C07D 271/10

1,3,4-Oxadiazoles; Hydrogenated 1,3,4-oxadiazoles

Full Title

Heterocyclic compounds containing five-membered rings having two nitrogen atoms and one oxygen atom as the only ring hetero atoms > not condensed with other rings > 1,3,4-Oxadiazoles; Hydrogenated 1,3,4-oxadiazoles

2 direct subcodes

Child Classifications

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  • C07D 271/107 with two aryl or substituted aryl radicals attached in positions 2 and 5
  • C07D 271/113 with oxygen, sulfur or nitrogen atoms, directly attached to ring carbon atoms, the nitrogen atoms not forming part of a nitro radical

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