Carbon fibers having improved strength and modulus and an associated method and apparatus for preparing same
US-2024301590-A1 · Sep 12, 2024 · US
for manufacturing filaments from polyaddition, polycondensation, or polymerisation products
for manufacturing filaments from polyaddition, polycondensation, or polymerisation products · Cooperative Patent Classification (CPC)
Textile and paper production, treatment, and products.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | D01F9/328 |
| Official title | {for manufacturing filaments from polyaddition, polycondensation, or polymerisation products} |
| Display label | for manufacturing filaments from polyaddition, polycondensation, or polymerisation products |
| Total patents | 70 |
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 | 4 |
| 2016 | 7 |
| 2017 | 10 |
| 2018 | 4 |
| 2019 | 5 |
| 2020 | 4 |
| 2021 | 9 |
| 2022 | 6 |
| 2023 | 4 |
| 2024 | 15 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of producing flame-resistant fiber bundle and carbon fiber bundle and flameproofing furnace
US-12060659-B2 · Aug 13, 2024 · US
Oxidation heat treatment oven and method for manufacturing oxidized fiber bundle and carbon fiber bundle
US-12031244-B2 · Jul 9, 2024 · US
Microwave heating unit and method for producing carbon fiber using the same
US-2024117531-A1 · Apr 11, 2024 · US
Activated carbon fiber, activated carbon fiber formed body, and method for producing thereof, organic solvent adsorption/desorption device, organic solvent recovery system, method for adsorbing/desorbing organic solvent, and method for recovering organic solvent
US-2024101429-A1 · Mar 28, 2024 · US
Manufacturing method of carbon precursor fiber for gas diffusion layer
US-2024084482-A1 · Mar 14, 2024 · US
Pre-Stabilisation Reactor and System
US-2024042411-A1 · Feb 8, 2024 · US
Systems and methods for producing carbon nanostructures and ultrathin aligned carbon wires with multilayer turbostratic graphene structure
US-11846042-B2 · Dec 19, 2023 · US
Method and apparatus for joule carbonization or graphitization of fibers made from intrinsically electrically-conductive polymers
US-2023357963-A1 · Nov 9, 2023 · US
Oxidized fiber bundles, carbon fiber bundle production method, and oxidation furnace
US-2023119738-A1 · Apr 20, 2023 · US
Method for manufacturing oxidized fiber bundle, method for manufacturing carbon fiber bundle, and joining apparatus
US-11598029-B2 · Mar 7, 2023 · US
Method and apparatus for manufacturing carbon fibers
US-11525193-B2 · Dec 13, 2022 · US
Method of producing flame-resistant fiber bundle and carbon fiber bundle and flameproofing furnace
US-2022251736-A1 · Aug 11, 2022 · US
Oxidation heat treatment oven and method for manufacturing oxidized fiber bundle and carbon fiber bundle
US-2022162776-A1 · May 26, 2022 · US
Stabilized fiber bundle and method of manufacturing carbon fiber bundle
US-11319648-B2 · May 3, 2022 · US
Selective control of oxidation atmospheres in carbon fiber production
US-11299824-B2 · Apr 12, 2022 · US
Carbon fiber production method
US-11261545-B2 · Mar 1, 2022 · US
Method of producing precursor fiber for carbon fiber and carbon fiber
US-2021395924-A1 · Dec 23, 2021 · US
Method of manufacturing stabilized fiber bundle, and method of manufacturing carbon fiber bundle
US-2021348305-A1 · Nov 11, 2021 · US
Method for producing flame-proof fiber bundle, and method for producing carbon fiber bundle
US-2021310158-A1 · Oct 7, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D01F9/328?
- CPC D01F9/328 is the Cooperative Patent Classification code for “for manufacturing filaments from polyaddition, polycondensation, or polymerisation products.”
- How many patents are filed under CPC D01F9/328 (for manufacturing filaments from polyaddition, polycondensation, or polymerisation products)?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC D01F9/328 growing?
- Publication counts under this code: 15 in 2024 vs 1 in 2025 (latest complete years).