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DIFF Subgroup
C07C 251/54

of hydrocarbon radicals substituted by singly-bound oxygen atoms

Introduced: January 1990

Full Title

Full titles differ between systems:

IPC:

Compounds containing nitrogen atoms doubly- bound to a carbon skeleton > Oximes > having oxygen atoms of oxyimino groups bound to carbon atoms of substituted hydrocarbon radicals > of hydrocarbon radicals substituted by singly-bound oxygen atoms

CPC:

Compounds containing nitrogen atoms doubly-bound to a carbon skeleton (diazo compounds C07C245/12) > Oximes > having oxygen atoms of oxyimino groups bound to carbon atoms of substituted hydrocarbon radicals > of hydrocarbon radicals substituted by singly-bound oxygen atoms

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class C07,2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 12,697
  2. ROCHE CH 11,347
  3. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 11,024
  4. NOVARTIS CH 9,356
  5. BASF (BADISCHE ANILIN & SODA FABRIK) DE 8,531
  6. BRISTOL-MYERS SQUIBB COMPANY US 7,320
  7. LG CHEM KR 7,245
  8. REGENERON PHARMACEUTICALS US 6,816
  9. HARVARD UNIVERSITY US 6,190
  10. GENENTECH US 5,922

Top Applicants (CPC)

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