Polymer manufacturing process using a poly(arylethersulfone) as a reactant
US-2025346719-A1 · Nov 13, 2025 · US
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Copolymers of sulfur dioxide with unsaturated organic compounds
Copolymers of sulfur dioxide with unsaturated organic compounds · 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 | C08G75/205 |
| Official title | Copolymers of sulfur dioxide with unsaturated organic compounds |
| Display label | Copolymers of sulfur dioxide with unsaturated organic compounds |
| Total patents | 11 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 4 |
| 2018 | 2 |
| 2019 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Aromatic polysulfone
US-10400069-B2 · Sep 3, 2019 · US
Aromatic polysulfone
US-2018057636-A1 · Mar 1, 2018 · US
Maleimide resins
US-9884942-B2 · Feb 6, 2018 · US
Process for making a polyzwitterion or polyzwitterionic acid
US-9617388-B2 · Apr 11, 2017 · US
Process for making a poly(zwitterion/dianion)
US-9580521-B1 · Feb 28, 2017 · US
Process for making a poly(zwitterion/dianion)
US-2017044277-A1 · Feb 16, 2017 · US
Process for making a polyzwitterion or polyzwitterionic acid
US-2017015788-A1 · Jan 19, 2017 · US
Synthesis of a diallylammonium/SO2 copolymer bearing phospho- and sulfopropyl pendents
US-9481765-B2 · Nov 1, 2016 · US
Synthesis of a diallylammonium/so2 copolymer bearing phospho- and sulfopropyl pendents
US-2015183933-A1 · Jul 2, 2015 · US
Cross-linked polyzwitterion/anion for the removal of strontium from aqueous solutions
US-8937104-B2 · Jan 20, 2015 · US