C07C 2/44 of conjugated dienes only
Introduced: January 1980
Full Title
Full titles differ between systems:
Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms > by addition between unsaturated hydrocarbons > homo- or co-oligomerisation with ring formation, not being a Diels-Alder conversion > of conjugated dienes only
Preparation of hydrocarbons from hydrocarbons containing a smaller number of carbon atoms (redistribution reactions involving splitting C07C6/00) > by addition between unsaturated hydrocarbons > homo- or co-oligomerisation with ring formation, not being a Diels-Alder conversion > of conjugated dienes only
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1980.
Child Classifications
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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