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DIFF Subgroup
C07C 69/52

Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Esters of carboxylic acids; Esters of carbonic or haloformic acids > Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom

CPC:

Esters of carboxylic acids; Esters of carbonic or haloformic acids (ortho esters, see the relevant groups, e.g. C07C43/32) > Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom

Of 7 combined children, 6 exist in both systems.

1 codes exist only in IPC.

IPC defines codes here since 1980.

Child Classifications

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  • C07C 69/527 of unsaturated hydroxy compounds since 1980 IPC only IPC only
  • C07C 69/587 Monocarboxylic acid esters having at least two carbon-to-carbon double bonds since 1980 IPC+CPC Available in IPC and CPC
  • C07C 69/602 Dicarboxylic acid esters having at least two carbon-to-carbon double bonds since 1980 IPC+CPC Available in IPC and CPC
  • C07C 69/604 Polycarboxylic acid esters, the acid moiety containing more than two carboxyl groups since 1980 IPC+CPC Available in IPC and CPC
  • C07C 69/606 having only carbon-to-carbon triple bonds as unsaturation in the carboxylic acid moiety 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