C07C 21/02 containing carbon-to-carbon double bonds
Introduced: September 1968
Last revised: January 2006
Full Title
Acyclic unsaturated compounds containing halogen atoms > containing carbon-to-carbon double bonds
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- ACYCLIC OR CARBOCYCLIC COMPOUNDS
Filing statistics
IPC C07C 21/02 belongs to the parent subclass C07C, which recorded 319,159 patent applications worldwide between 2013 and 2023. Annual filings declined from 28,346 in 2013 to 26,894 in 2023 (-5%), peaking at 30,398 applications in 2020. The most active applicants in class C07 are CHINESE ACADEMY OF SCIENCES (12,697 applications), ROCHE (11,347 applications) and SINOPEC (CHINA PETROCHEMICAL CORPORATION) (11,024 applications).
Source: EPO PATSTAT, worldwide filings
6 direct subcodes
Child Classifications
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- C07C 21/04 Chloro-alkenes
- C07C 21/14 containing bromine
- C07C 21/17 containing iodine
- C07C 21/18 containing fluorine
- C07C 21/19 Halogenated dienes
- C07C 21/215 Halogenated polyenes with more than two carbon-to-carbon double bonds
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