Process for synthesising semi-aromatic polyethers
US-12098244-B2 · Sep 24, 2024 · US
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in ring structure, e.g. phenolphtalein
in ring structure, e.g. phenolphtalein · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08G65/405 |
| Official title | {in ring structure, e.g. phenolphtalein} |
| Display label | in ring structure, e.g. phenolphtalein |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 3 |
| 2017 | 3 |
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 2 |
| 2021 | 2 |
| 2022 | 3 |
| 2024 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymer, composition, molded article, cured product and laminate
US-12043702-B2 · Jul 23, 2024 · US
Polyelectrolyte molded body, and polyelectrolyte membrane, electrolyte membrane with catalyst layer, membrane electrode assembly, solid polymer-type fuel cell, and water electrolysis-style hydrogen production device in which said polyelectrolyte molded body is used
US-2024182639-A1 · Jun 6, 2024 · US
Block copolymer, production method therefor, polymeric electrolyte material, polymeric electrolyte molded article, polymeric electrolyte film,electrolyte film equipped with catalyst layer, membrane electrode composite, solid polymer fuel cell, and water electrolysis type hydrogen generating device
US-2024182638-A1 · Jun 6, 2024 · US
Polymer electrolyte membrane, block copolymer, polymer electrolyte material, polymer electrolyte molded body, electrolyte membrane with catalyst layer, membrane electrode composite, solid polymer fuel cell, and water electrolytic hydrogen generator
US-2024178424-A1 · May 30, 2024 · US
Polymer, composition, molded article, cured product and laminate
US-11505651-B2 · Nov 22, 2022 · US
Polymer, composition, molded article, cured product and laminate
US-2022235179-A1 · Jul 28, 2022 · US
Process for synthesising semi-aromatic polyethers
US-2022177648-A1 · Jun 9, 2022 · US
Polyisoindolinones, methods of manufacture, and compositions and articles formed therefrom
US-2021189064-A1 · Jun 24, 2021 · US
Bio-based polyarylene ether resin containing furan ring structure and preparation method therefor
US-2021047466-A1 · Feb 18, 2021 · US
Polymer compositions based on a bio-sourced polyarylene ether ketone
US-10717815-B2 · Jul 21, 2020 · US
Polyisoindolinone compositions, methods of manufacture, and compositions and articles formed therefrom
US-10640645-B2 · May 5, 2020 · US
Polyisoindolinone compositions, methods of manufacture, and compositions and articles formed therefrom
US-2019127575-A1 · May 2, 2019 · US
Polymer electrolyte membrane, catalyst coated membrane, membrane electrode assembly, and polymer electrolyte fuel cell
US-10243229-B2 · Mar 26, 2019 · US
Polymer, composition, molded article, cured product and laminate
US-2019055357-A1 · Feb 21, 2019 · US
Polymer compositions based on a bio-sourced polyarylene ether ketone
US-2018312635-A1 · Nov 1, 2018 · US
Block copolymer, manufacturing method therefor, and polymer electrolyte material, molded polymer electrolyte, and solid-polymer fuel cell using said block copolymer
US-9653745-B2 · May 16, 2017 · US
Polyether ketone compound
US-2017073460-A1 · Mar 16, 2017 · US
Polymer electrolyte membrane, catalyst coated membrane, membrane electrode assembly, and polymer electrolyte fuel cell
US-2017018793-A1 · Jan 19, 2017 · US
Intermediate for manufacture of polymerizable compound and process for manufacture thereof
US-9447059-B2 · Sep 20, 2016 · US