IPC Subgroup
C07C 57/04 Acrylic acid; Methacrylic acid
Introduced: September 1968
Last revised: January 2006
Full Title
Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms > with only carbon-to-carbon double bonds as unsaturation > Monocarboxylic acids > Acrylic acid; Methacrylic acid
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC CHEMISTRY
- Subclass:
- ACYCLIC OR CARBOCYCLIC COMPOUNDS
Related Keywords
ACRYLIC acid
4 direct subcodes
Child Classifications
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- C07C 57/045 Preparation by oxidation in the liquid phase
- C07C 57/05 Preparation by oxidation in the gaseous phase
- C07C 57/065 Preparation by splitting-off H—X, X being halogen, OR, or NR, R being hydrogen or a hydrocarbon group
- C07C 57/07 Separation; Purification; Stabilisation; Use of additives
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