Process for the synthesis of polycarbonates from cyclic monothiocarbonates
US-12365760-B2 · Jul 22, 2025 · US
containing sulfur
containing sulfur · 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 | C08G64/165 |
| Official title | {containing sulfur} |
| Display label | containing sulfur |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2018 | 1 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 3 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 6 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Resin and Method for Preparing Same
US-2025230275-A1 · Jul 17, 2025 · US
Resin and Method for Preparing the Same
US-2025163215-A1 · May 22, 2025 · US
Polycarbonate Resin and Production Method for Same
US-2025101172-A1 · Mar 27, 2025 · US
Polycarbonate Resin and Method for Preparing Same
US-2024425646-A1 · Dec 26, 2024 · US
Polycarbonate Resin and Preparation Method Thereof
US-2024392066-A1 · Nov 28, 2024 · US
Resin and Method for Preparing Same
US-2024384026-A1 · Nov 21, 2024 · US
Polycarbonate and preparation method therefor and application thereof
US-2024301135-A1 · Sep 12, 2024 · US
Polycarbonate resin, method for producing the same, and optical lens
US-11952460-B2 · Apr 9, 2024 · US
Chemical compounds with perfluoroaryl groups that can facilitate post-synthesis functionalization
US-11926693-B2 · Mar 12, 2024 · US
Resin and Preparation Method Therefor
US-2023303767-A1 · Sep 28, 2023 · US
Resin and Method for Producing Same
US-2023295372-A1 · Sep 21, 2023 · US
Polyester carbonate resin and optical lens
US-11732088-B2 · Aug 22, 2023 · US
Sulfur-stabilized copolycarbonates and articles formed therefrom
US-11649322-B2 · May 16, 2023 · US
Polycarbonate resin, method for producing the same, and optical lens
US-2022380532-A1 · Dec 1, 2022 · US
Polycarbonate resin, method for producing the same, and optical lens
US-11434327-B2 · Sep 6, 2022 · US
Process for the synthesis of polycarbonates from cyclic monothiocarbonates
US-2022220254-A1 · Jul 14, 2022 · US
Polyester carbonate resin and optical lens
US-2021347937-A1 · Nov 11, 2021 · US
Chemical compounds with perfluoroaryl groups that can facilitate post-synthesis functionalization
US-2021324133-A1 · Oct 21, 2021 · US
Chemical compounds with perfluoroaryl groups that can facilitate post-synthesis functionalization
US-11084897-B2 · Aug 10, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G64/165?
- CPC C08G64/165 is the Cooperative Patent Classification code for “containing sulfur.”
- How many patents are filed under CPC C08G64/165 (containing sulfur)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC C08G64/165 growing?
- Publication counts under this code: 6 in 2024 vs 4 in 2025 (latest complete years).