Method for the continuous preparation of polyamide prepolymers
US-12583969-B2 · Mar 24, 2026 · US
Solid state polycondensation
Solid state polycondensation · 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 | C08G69/06 |
| Official title | Solid state polycondensation |
| Display label | Solid state polycondensation |
| Total patents | 41 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 9 |
| 2017 | 7 |
| 2018 | 2 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 3 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
High Molecular Weight Polyamides and CoPolyamides with Uniform RV and Low Gel Content
US-2025215154-A1 · Jul 3, 2025 · US
Thermoplastic polymer powder for 3D printing
US-2025043108-A1 · Feb 6, 2025 · US
Multilayer vessel, and application thereof
US-11911341-B2 · Feb 27, 2024 · US
Method for synthesizing long carbon chain semi-aromatic nylon
US-11905370-B2 · Feb 20, 2024 · US
Method for the continuous preparation of polyamide prepolymers
US-2024010793-A1 · Jan 11, 2024 · US
Polyamide-10 having superior mechanical and thermal properties and method for preparation thereof
US-11851527-B2 · Dec 26, 2023 · US
Arginine-based antibacterial polymers with UCST property
US-11827747-B2 · Nov 28, 2023 · US
Yield-optimized method for producing a polyamide powder composition
US-2023374217-A1 · Nov 23, 2023 · US
High Molecular Weight Polyamides and CoPolyamides with Uniform RV and Low Gel Content
US-2023250232-A1 · Aug 10, 2023 · US
Arginine-based antibacterial polymers with ucst property
US-2022213265-A1 · Jul 7, 2022 · US
Derivatives of 10-methylene lipids, process for preparing such derivatives and use thereof
US-2022169596-A1 · Jun 2, 2022 · US
Method for synthesizing long carbon chain semi-aromatic nylon
US-2022145007-A1 · May 12, 2022 · US
Continuous solid-state polymerization process and reactor column for use therein
US-2022049055-A1 · Feb 17, 2022 · US
Polyamide-10 having superior mechanical and thermal properties and method for preparation thereof
US-2022025116-A1 · Jan 27, 2022 · US
Method for continuously producing a polyamide powder
US-11186684-B2 · Nov 30, 2021 · US
Method for continuously producing a polyamide powder
US-2021269596-A1 · Sep 2, 2021 · US
Semi-aromatic polyamide resin and method for producing same
US-2021032406-A1 · Feb 4, 2021 · US
Polyamide composition for liquid-assisted injection moulding applications
US-2020399468-A1 · Dec 24, 2020 · US
Processes for removing residual caprolactam via ssp water addition
US-2020002474-A1 · Jan 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08G69/06?
- CPC C08G69/06 is the Cooperative Patent Classification code for “Solid state polycondensation.”
- How many patents are filed under CPC C08G69/06 (Solid state polycondensation)?
- Our database includes 41 publications tagged with this CPC code.
- Is patent activity under CPC C08G69/06 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).