IPC Subgroup
C07C 21/04 Chloro-alkenes
Introduced: September 1968
Last revised: January 2006
Full Title
Acyclic unsaturated compounds containing halogen atoms > containing carbon-to-carbon double bonds > Chloro-alkenes
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- ACYCLIC OR CARBOCYCLIC COMPOUNDS
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 21/1 Trichloroethene
- C07C 21/12 Tetrachloroethene
Top Applicants
Top 10 applicants by patent filingsfor 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