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CPC Subgroup
C07D 303/28

Ethers with hydroxy compounds containing oxirane rings

Full Title

Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom > Compounds containing oxirane rings > with hydrocarbon radicals, substituted by singly or doubly bound oxygen atoms > by etherified hydroxyl radicals > Ethers with hydroxy compounds containing oxirane rings

1 direct subcode

Child Classifications

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  • C07D 303/30 Ethers of oxirane-containing polyhydroxy compounds in which all hydroxyl radicals are etherified with oxirane-containing hydroxy compounds

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