C07C 13/567 with a fluorene or hydrogenated fluorene ring system
Introduced: January 1980
Title
Titles differ between systems:
IPC: Fluorenes; Completely or partially hydrogenated fluorenes
CPC: with a fluorene or hydrogenated fluorene ring system
Full Title
Full titles differ between systems:
Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings > Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof > with condensed rings > with three condensed rings > at least one ring not being six-membered, the other rings being at the most six-membered > Fluorenes; Completely or partially hydrogenated fluorenes
Cyclic hydrocarbons containing rings other than, or in addition to, six-membered aromatic rings > Polycyclic hydrocarbons or acyclic hydrocarbon derivatives thereof > with condensed rings > with three condensed rings > at least one ring not being six-membered, the other rings being at the most six-membered > with a fluorene or hydrogenated fluorene ring system
No child classifications to compare. This is a leaf node in both IPC and CPC.
Top Applicants
Top Applicants (IPC)
Class C07,2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 12,697
- ROCHE CH 11,347
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 11,024
- NOVARTIS CH 9,356
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 8,531
- BRISTOL-MYERS SQUIBB COMPANY US 7,320
- LG CHEM KR 7,245
- REGENERON PHARMACEUTICALS US 6,816
- HARVARD UNIVERSITY US 6,190
- GENENTECH US 5,922
Top Applicants (CPC)
Class C07,2013–2023, worldwide · Source: EPO PATSTAT
- ROCHE CH 12,683
- NOVARTIS CH 10,775
- CHINESE ACADEMY OF SCIENCES 10,619
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,511
- REGENERON PHARMACEUTICALS US 8,426
- BRISTOL-MYERS SQUIBB COMPANY US 7,979
- LG CHEM KR 7,978
- HARVARD UNIVERSITY US 7,706
- UNIVERSITY OF CALIFORNIA US 7,455
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,219