Polycarbonate Resin and Method for Preparing Same
US-2024150521-A1 · May 9, 2024 · US
and alcohols
and alcohols · 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 | C08G64/305 |
| Official title | {and alcohols} |
| Display label | and alcohols |
| Total patents | 315 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 19 |
| 2016 | 24 |
| 2017 | 10 |
| 2018 | 23 |
| 2019 | 21 |
| 2020 | 24 |
| 2021 | 34 |
| 2022 | 39 |
| 2023 | 39 |
| 2024 | 30 |
| 2025 | 46 |
| 2026 | 6 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing polycarbonate
US-2018371164-A1 · Dec 27, 2018 · US
Method for producing oligomers for producing polycarbonates
US-2018371163-A1 · Dec 27, 2018 · US
Double perovskite
US-2018290897-A1 · Oct 11, 2018 · US
Resin composition and film formed from same
US-2018282540-A1 · Oct 4, 2018 · US
Copolymer based on dimethyl carbonate and method of preparing the same
US-2018251597-A1 · Sep 6, 2018 · US
Copolycarbonate and method for preparing the same
US-10017608-B2 · Jul 10, 2018 · US
Process for producing a high molecular-weight aromatic polycarbonate resin
US-9822218-B2 · Nov 21, 2017 · US
Method for producing polyether carbonate polyols
US-9815965-B2 · Nov 14, 2017 · US
Method for making polycarbonate using a liquid ketone mixture
US-2017306090-A1 · Oct 26, 2017 · US
Copolycarbonate and method for preparing the same
US-2017298177-A1 · Oct 19, 2017 · US
Polycarbonate resin
US-2017283550-A1 · Oct 5, 2017 · US
Polycarbonate resin and optical lens
US-2017276837-A1 · Sep 28, 2017 · US
Polycarbonate resin usable as oil-adsorbing material
US-9708445-B2 · Jul 18, 2017 · US
High-fluidity polycarbonate copolymer, process for production highly polymerized aromatic polycarbonate resin and aromatic polycarbonate compound
US-2017174833-A1 · Jun 22, 2017 · US
Method for producing polycarbonate diol, polycarbonate diol and polyurethane using same
US-2017073466-A1 · Mar 16, 2017 · US
Polycarbonate resin composition
US-2017037220-A1 · Feb 9, 2017 · US
Amorphous polyester from bio-based bis-furan assembly
US-9527952-B1 · Dec 27, 2016 · US
Resin composition, stretched film, circularly polarizing plate, and image display device
US-9518150-B2 · Dec 13, 2016 · US
High-molecular weight aliphatic polycarbonate prepared using base catalyst
US-9475905-B2 · Oct 25, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G64/305?
- CPC C08G64/305 is the Cooperative Patent Classification code for “and alcohols.”
- How many patents are filed under CPC C08G64/305 (and alcohols)?
- Our database includes 315 publications tagged with this CPC code.
- Is patent activity under CPC C08G64/305 growing?
- Publication counts under this code: 30 in 2024 vs 46 in 2025 (latest complete years).