Improvements Relating to Carbon Fibre Precursors
US-2020347232-A1 · Nov 5, 2020 · US
from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds · 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 | D01F9/21 |
| Official title | from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds |
| Display label | from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds |
| Total patents | 105 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 15 |
| 2016 | 8 |
| 2017 | 14 |
| 2018 | 13 |
| 2019 | 5 |
| 2020 | 7 |
| 2021 | 5 |
| 2022 | 15 |
| 2023 | 7 |
| 2024 | 10 |
| 2025 | 5 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Metal-carbon nanofiber and production method thereof
US-10682698-B2 · Jun 16, 2020 · US
Scalable and facile in situ synthesis of nanoparticles resulting in decorated multifunctional fibers
US-2020165746-A1 · May 28, 2020 · US
Process for steam drawing carbon-fiber precursor acrylic fiber bundle
US-10604871-B2 · Mar 31, 2020 · US
Method for production of carbon nanofiber mat or carbon paper
US-10563323-B2 · Feb 18, 2020 · US
Methods of using N-containing compounds with carbon black to replace pan and form carbon fibers
US-10442934-B2 · Oct 15, 2019 · US
Carbon material precursor, carbon material precursor composition containing the same, and method for producing carbon material using these
US-2019292056-A1 · Sep 26, 2019 · US
Method of preparing doped and/or composite carbon fibers
US-10422054-B2 · Sep 24, 2019 · US
Functional molecules and other structural carbon-based molecules with rigid backbones and kinked segments
US-2019276952-A1 · Sep 12, 2019 · US
Particulate porous carbon material, particulate carbon material aggregate, and production method for particulate porous carbon material
US-10399856-B2 · Sep 3, 2019 · US
Carbon membrane for fluid separation, fluid separation membrane module, and method for producing carbon membrane for fluid separation
US-10159943-B2 · Dec 25, 2018 · US
Oil agent for carbon fiber precursor acrylic fiber, oil composition for carbon fiber precursor acrylic fiber, processed-oil solution for carbon-fiber precursor acrylic fiber, and method for producing carbon-fiber precursor acrylic fiber bundle, and carbon-fiber bundle using carbon-fiber precursor acrylic fiber bundle
US-10072359-B2 · Sep 11, 2018 · US
Metal-carbon nanofiber and production method thereof
US-2018200788-A1 · Jul 19, 2018 · US
Carbon material and production method for same
US-2018202079-A1 · Jul 19, 2018 · US
Carbon fiber layer having carbon coating
US-2018051398-A1 · Feb 22, 2018 · US
Modification of continuous carbon fibers during precursor formation for composites having enhanced moldability
US-9896783-B2 · Feb 20, 2018 · US
Method for production of carbon fiber bundle
US-9890481-B2 · Feb 13, 2018 · US
Process for making a fabricated article from polyolefin
US-2018038013-A1 · Feb 8, 2018 · US
Process for making a fabricated article from polyolefin
US-2018037713-A1 · Feb 8, 2018 · US
Boron-containing fabricated article prepared from polyolefin precursor
US-2018037714-A1 · Feb 8, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D01F9/21?
- CPC D01F9/21 is the Cooperative Patent Classification code for “from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds.”
- How many patents are filed under CPC D01F9/21 (from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds)?
- Our database includes 105 publications tagged with this CPC code.
- Is patent activity under CPC D01F9/21 growing?
- Publication counts under this code: 10 in 2024 vs 5 in 2025 (latest complete years).