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DIFF Main Group
C07C 253/00

Preparation of carboxylic acid nitriles (of cyanogen or compounds thereof C01C3/00)

Introduced: January 1990

Title

Titles differ between systems:

IPC: Preparation of carboxylic acid nitriles

CPC: Preparation of carboxylic acid nitriles (of cyanogen or compounds thereof C01C3/00)

Full Title

Full titles differ between systems:

IPC:

Preparation of carboxylic acid nitriles

CPC:

Preparation of carboxylic acid nitriles (of cyanogen or compounds thereof C01C3/00)

IPC and CPC are identically structured here. All 12 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1990.

Child Classifications

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  • C07C 253/02 by reaction of nitrogen oxide with organic compounds since 1990 IPC+CPC Available in IPC and CPC
  • C07C 253/04 by reaction of cyanogen halides, e.g. ClCN, with organic compounds since 1990 IPC+CPC Available in IPC and CPC
  • C07C 253/06 from N-formylated amino compounds since 1990 IPC+CPC Available in IPC and CPC
  • C07C 253/14 by reaction of cyanides with halogen-containing compounds with replacement of halogen atoms by cyano groups since 1990 IPC+CPC Available in IPC and CPC
  • C07C 253/16 by reaction of cyanides with lactones or compounds containing hydroxy groups or etherified or esterified hydroxy groups since 1990 IPC+CPC Available in IPC and CPC
  • C07C 253/18 by reaction of ammonia or amines with compounds containing carbon-to-carbon multiple bonds other than in six-membered aromatic rings since 1990 IPC+CPC Available in IPC and CPC
  • C07C 253/20 by dehydration of carboxylic acid amides since 1990 IPC+CPC Available in IPC and CPC
  • C07C 253/22 by reaction of ammonia with carboxylic acids with replacement of carboxyl groups by cyano groups since 1990 IPC+CPC Available in IPC and CPC
  • C07C 253/30 by reactions not involving the formation of cyano groups since 1990 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