Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by contraction of only one ring by one atom and expansion of only one ring by one atom

Introduced: July 1974

Title

Titles differ between systems:

IPC: Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by contraction of only one ring by one atom and expansion of only one ring by one atom

CPC: Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by contraction of only one ring by one atom and expansion of only one ring by one atom

Full Title

Full titles differ between systems:

IPC:

Steroids in which the cyclopenta[a]hydrophenanthrene skeleton has been modified by contraction of only one ring by one atom and expansion of only one ring by one atom

CPC:

Steroids in which the cyclopenta(a)hydrophenanthrene skeleton has been modified by contraction of only one ring by one atom and expansion of only one ring by one atom

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