C08F 8/00 Chemical modification by after-treatment (graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C08F251/00 - C08F299/00; of conjugated diene rubbers C08C)
Introduced: July 1974
Title
Titles differ between systems:
IPC: Chemical modification by after-treatment
CPC: Chemical modification by after-treatment (graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C08F251/00 - C08F299/00; of conjugated diene rubbers C08C)
Full Title
Full titles differ between systems:
Chemical modification by after-treatment
Chemical modification by after-treatment (graft polymers, block polymers, crosslinking with unsaturated monomers or with polymers C08F251/00 - C08F299/00; of conjugated diene rubbers C08C)
IPC and CPC are identically structured here. All 18 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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- C08F 8/18 Introducing halogen atoms or halogen-containing groups since 1974 IPC+CPC Available in IPC and CPC
- C08F 8/26 Removing halogen atoms or halogen-containing groups from the molecule since 1974 IPC+CPC Available in IPC and CPC
- C08F 8/30 Introducing nitrogen atoms or nitrogen-containing groups since 1974 IPC+CPC Available in IPC and CPC
- C08F 8/34 Introducing sulfur atoms or sulfur-containing groups since 1974 IPC+CPC Available in IPC and CPC
- C08F 8/40 Introducing phosphorus atoms or phosphorus-containing groups since 1974 IPC+CPC Available in IPC and CPC
- C08F 8/42 Introducing metal atoms or metal-containing groups since 1974 IPC+CPC Available in IPC and CPC
- C08F 8/46 Reaction with unsaturated dicarboxylic acids or anhydrides thereof, e.g. maleinisation since 1974 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
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
Top Applicants (CPC)
Class C08,2013–2023, worldwide · Source: EPO PATSTAT
- LG CHEM KR 15,432
- DOW GLOBAL TECHNOLOGIES US 14,214
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 11,155
- 3M INNOVATIVE PROPERTIES COMPANY (MINNESOTA MINING AND MANUFACTURING INNOVATIVE PROPERTIES COMPANY) US 6,455
- FUJIFILM JP 6,178
- CHINESE ACADEMY OF SCIENCES 5,569
- SHIN-ETSU CHEMICAL COMPANY JP 5,506
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,443
- TORAY INDUSTRIES JP 4,635
- NITTO DENKO CORPORATION JP 4,620