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CPC Subgroup
C07C 13/32

with condensed rings

Full Title

Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings > Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof > with condensed rings

11 direct subcodes

Child Classifications

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  • C07C 13/34 with a bicyclo ring system containing four carbon atoms
  • C07C 13/36 with a bicyclo ring system containing five carbon atoms
  • C07C 13/38 with a bicyclo ring system containing six carbon atoms
  • C07C 13/44 with a bicyclo ring system containing eight carbon atoms
  • C07C 13/70 with a condensed ring system consisting of at least two, mutually uncondensed aromatic ring systems, linked by an annular structure formed by carbon chains on non-adjacent positions of the aromatic ring, e.g. cyclophanes
  • C07C 13/72 Spiro hydrocarbons

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