IPC Subgroup
C08F 220/1 Esters
Introduced: July 1974
Last revised: January 2006
Full Title
Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide, or nitrile thereof > Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof > Esters
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- Subclass:
- MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
7 direct subcodes
Child Classifications
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- C08F 220/12 of monohydric alcohols or phenols
- C08F 220/2 of polyhydric alcohols or phenols
- C08F 220/22 Esters containing halogen
- C08F 220/26 Esters containing oxygen in addition to the carboxy oxygen
- C08F 220/34 Esters containing nitrogen
- C08F 220/38 Esters containing sulfur
- C08F 220/4 Esters of unsaturated alcohols
Top Applicants
Top 10 applicants by patent filingsfor class C08, 2013–2023, worldwide · Source: EPO PATSTAT
- LG CHEM KR 14,262
- DOW GLOBAL TECHNOLOGIES US 12,486
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 9,858
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 7,877
- CHINESE ACADEMY OF SCIENCES 6,993
- FUJIFILM JP 5,049
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 4,923
- SHIN-ETSU CHEMICAL COMPANY JP 4,517
- BOREALIS AT 4,213
- ARKEMA FR 4,098