CPC Subgroup Additional Only
C08G 2650/28 characterised by the polymer type
Full Title
Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule > characterised by the polymer type
10 direct subcodes
Child Classifications
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- C08G 2650/30 branched
- C08G 2650/34 Oligomeric, e.g. cyclic oligomeric
- C08G 2650/36 Pre-polymer
- C08G 2650/38 containing oxygen in addition to the ether group
- C08G 2650/46 containing halogen
- C08G 2650/50 containing nitrogen, e.g. polyetheramines or Jeffamines(r)
- C08G 2650/52 obtained by dehydration of polyhydric alcohols
- C08G 2650/56 Polyhydroxyethers, e.g. phenoxy resins
- C08G 2650/58 Ethylene oxide or propylene oxide copolymers, e.g. pluronics
- C08G 2650/60 containing acetylenic group
Top Applicants
Top 10 applicants by patent filingsfor 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