Double perovskite
US-2018290897-A1 · Oct 11, 2018 · US
Aliphatic polycarbonates
Aliphatic polycarbonates · 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 | C08G64/02 |
| Official title | Aliphatic polycarbonates |
| Display label | Aliphatic polycarbonates |
| Total patents | 194 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 22 |
| 2016 | 22 |
| 2017 | 13 |
| 2018 | 21 |
| 2019 | 19 |
| 2020 | 22 |
| 2021 | 19 |
| 2022 | 21 |
| 2023 | 13 |
| 2024 | 12 |
| 2025 | 7 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Resin composition and film formed from same
US-2018282540-A1 · Oct 4, 2018 · US
Organic oligomers of acylglycerol
US-9957222-B2 · May 1, 2018 · US
Substrate with conductive film
US-2017330913-A1 · Nov 16, 2017 · US
Polycarbonate-based thermoplastic resin composition and product using same
US-2017320982-A1 · Nov 9, 2017 · US
Block copolymers for therapeutic drug delivery
US-2017319704-A1 · Nov 9, 2017 · US
Polycarbonate resin
US-2017283550-A1 · Oct 5, 2017 · US
Polycarbonate resin and optical lens
US-2017276837-A1 · Sep 28, 2017 · US
Polycarbonate and method of preparing the same
US-9765184-B2 · Sep 19, 2017 · US
Polymer blends
US-9738784-B2 · Aug 22, 2017 · US
Polycarbonate resin composition and molded article
US-9670359-B2 · Jun 6, 2017 · US
Polycarbonates, polyurethanes, elastomers, processes for manufacturing polycarbonates and processes for manufacturing polyurethanes
US-2017145158-A1 · May 25, 2017 · US
Alkoxylated hyperbranched polycarbonates for solubilizing poorly soluble active ingredients
US-9648873-B2 · May 16, 2017 · US
Method for producing polycarbonate diol, polycarbonate diol and polyurethane using same
US-2017073466-A1 · Mar 16, 2017 · US
Catalysts and methods for polymer synthesis
US-9580547-B2 · Feb 28, 2017 · US
Method of producing polycarbonate-based polymer microparticles comprising contacting an emulsion with a poor solvent, and polycarbonate-based polymer microparticles
US-9567443-B2 · Feb 14, 2017 · US
Catalyst systems based on phenolate complexes for immortal ring-opening polymerization of cyclic esters and carbohydrates
US-9512267-B2 · Dec 6, 2016 · US
Catalyst
US-2016347906-A1 · Dec 1, 2016 · US
Semiconductor device, method for producing same and aliphatic polycarbonate
US-2016315198-A1 · Oct 27, 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 C08G64/02?
- CPC C08G64/02 is the Cooperative Patent Classification code for “Aliphatic polycarbonates.”
- How many patents are filed under CPC C08G64/02 (Aliphatic polycarbonates)?
- Our database includes 194 publications tagged with this CPC code.
- Is patent activity under CPC C08G64/02 growing?
- Publication counts under this code: 12 in 2024 vs 7 in 2025 (latest complete years).