Thiocarbonyl-based poly(O-thiocarbamate) compound and preparation method and use thereof
US-12351687-B2 · Jul 8, 2025 · US
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Polythiocarbonates
Polythiocarbonates · 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 | C08G75/28 |
| Official title | Polythiocarbonates |
| Display label | Polythiocarbonates |
| Total patents | 19 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Polymers of a compound comprising a monothiocarbonate group and an ethylenically unsaturated group
US-12060458-B2 · Aug 13, 2024 · US
Process for preparing a sulfur copolymer
US-12031030-B2 · Jul 9, 2024 · US
Process for preparing a sulfur copolymer
US-2024101823-A1 · Mar 28, 2024 · US
Organic metal-free catalysts with electrophilic and nucleophilic dual-functions, preparation methods of making the same, and uses thereof
US-11780961-B2 · Oct 10, 2023 · US
Process for the free radical polymerization of thionolactones or thionocarbonates
US-2023151147-A1 · May 18, 2023 · US
Thiocarbonyl-based poly(o-thiocarbamate) compound and preparation method and use thereof
US-2023002559-A1 · Jan 5, 2023 · US
Crystalline polythiocarbonate and preparation method therefor
US-11492447-B2 · Nov 8, 2022 · US
Crystalline polythiocarbonate and preparation method therefor
US-2022106445-A1 · Apr 7, 2022 · US
Organic metal-free catalysts with electrophilic and nucleophilic dual-functions, preparation methods of making the same, and uses thereof
US-2021363297-A1 · Nov 25, 2021 · US
Dithiocarbonate containing polyols as polymer polyol stabilizers
US-11149145-B2 · Oct 19, 2021 · US
Polymers of a compound comprising a monothiocarbonate group and an ethylenically unsaturated group
US-2021309805-A1 · Oct 7, 2021 · US
Dithiocarbonate containing polyols as polymer polyol stabilizers
US-2020087511-A1 · Mar 19, 2020 · US
Dithiocarbonate containing polyols as polymer polyol stabilizers
US-10526484-B2 · Jan 7, 2020 · US
Dithiocarbonate containing polyols as polymer polyol stabilizers
US-2019185666-A1 · Jun 20, 2019 · US
Oligomer additive and lithium battery
US-9988495-B2 · Jun 5, 2018 · US
Polymerization method and polymers formed therewith
US-2017218127-A1 · Aug 3, 2017 · US
Oligomer additive and lithium battery
US-2017210855-A1 · Jul 27, 2017 · US
Method for producing composition for optical material
US-9458293-B2 · Oct 4, 2016 · US