Skip to content
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
C07C 49/20

Unsaturated compounds containing keto groups bound to acyclic carbon atoms

Full Title

Ketones; Ketenes; Dimeric ketenes (heterocyclic compounds C07D, e.g. beta-lactones C07D305/12); Ketonic chelates > Unsaturated compounds containing keto groups bound to acyclic carbon atoms

9 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • C07C 49/207 with only carbon-to-carbon triple bonds as unsaturation
  • C07C 49/21 containing rings other than six-membered aromatic rings
  • C07C 49/225 containing six-membered aromatic rings and other rings
  • C07C 49/255 containing ether groups, [IMAGE cpc-sch-C07C-0958.gif] groups,[IMAGE cpc-sch-C07C-0959.gif] groups, or[IMAGE cpc-sch-C07C-0960.gif] groups
  • C07C 49/258 containing —CHO groups

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