CPC Subgroup
C07C 21/04 Chloro-alkenes
Full Title
Acyclic unsaturated compounds containing halogen atoms > containing carbon-to-carbon double bonds > Chloro-alkenes
5 direct subcodes
Child Classifications
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- C07C 21/06 Vinyl chloride
- C07C 21/067 Allyl chloride; Methallyl chloride
- C07C 21/073 Dichloro-alkenes
- C07C 21/10 Trichloroethene
- C07C 21/12 Tetrachloroethene
Top Applicants
Top 10 applicants by patent filingsfor 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