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DIFF Main Group
C07C 29/00

Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring

Introduced: September 1968

IPC and CPC are identically structured here. All 18 subcodes exist in both systems.

10 shared codes have differing titles between IPC and CPC.

Child Classifications

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  • C07C 29/16 by oxo-reaction combined with reduction IPC+CPC Available in IPC and CPC
  • C07C 29/56 by isomerisation since 1980 IPC+CPC Available in IPC and CPC
  • C07C 29/58 by elimination of halogen, e.g. by hydrogenolysis, splitting-off (C07C29/124 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
  • C07C 29/60 by elimination of -OH groups, e.g. by dehydration (C07C29/34 takes precedence) since 1980 IPC+CPC Available in IPC and CPC
  • C07C 29/62 by introduction of halogen; by substitution of halogen atoms by other halogen atoms since 1980 IPC+CPC Available in 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