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PCE
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CPC Subgroup
C07C 249/04

of oximes

Full Title

Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton (of diazo compounds C07C245/12) > of oximes

5 direct subcodes

Child Classifications

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  • C07C 249/06 by nitrosation of hydrocarbons or substituted hydrocarbons
  • C07C 249/08 by reaction of hydroxylamines with carbonyl compounds
  • C07C 249/10 from nitro compounds or salts thereof
  • C07C 249/12 by reactions not involving the formation of oxyimino groups
  • C07C 249/14 Separation; Purification; Stabilisation; Use of additives

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