DIFF Main Group
C08F 2/00 Processes of polymerisation
Introduced: July 1974
Of 15 combined children, 12 exist in both systems.
3 codes are CPC-only extensions.
3 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1974.
Child Classifications
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- C08F 2/01 characterised by special features of the polymerisation apparatus used since 2000 IPC+CPC Available in IPC and CPC
- C08F 2/04 Polymerisation in solution (C08F2/32 takes precedence) since 1974 IPC+CPC Available in IPC and CPC
- C08F 2/12 Polymerisation in non-solvents (C08F2/32 takes precedence) since 1974 IPC+CPC Available in IPC and CPC
- C08F 2/38 Polymerisation using regulators, e.g. chain terminating agents since 1974 IPC+CPC Available in IPC and CPC
- C08F 2/44 Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers since 1974 IPC+CPC Available in IPC and CPC
- C08F 2/46 Polymerisation initiated by wave energy or particle radiation since 1974 IPC+CPC Available in IPC and CPC
- C08F 2/58 Polymerisation initiated by direct application of electric current (electrolytic processes, e.g. electrophoresis C25) 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