Pitch compositions for spinning into carbon articles and methods relating thereto
US-12435450-B2 · Oct 7, 2025 · US
from coal pitch
from coal pitch · 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 | D01F9/15 |
| Official title | from coal pitch |
| Display label | from coal pitch |
| Total patents | 36 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 4 |
| 2020 | 4 |
| 2021 | 7 |
| 2022 | 4 |
| 2023 | 3 |
| 2024 | 5 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Activated carbon
US-2025121353-A1 · Apr 17, 2025 · US
Activated carbon
US-12258284-B2 · Mar 25, 2025 · US
Mesophase pitch for carbon fiber production using supercritical carbon dioxide
US-12152198-B2 · Nov 26, 2024 · US
Carbon fiber aggregate and method for producing same, and electrode mixture layer for nonaqueous-electrolyte secondary battery
US-12134838-B2 · Nov 5, 2024 · US
Methods to produce carbon fibers from carbon pitches
US-12031243-B2 · Jul 9, 2024 · US
Activated carbon
US-11873235-B2 · Jan 16, 2024 · US
Pitch Compositions For Spinning Into Carbon Articles And Methods Relating Thereto
US-2024003063-A1 · Jan 4, 2024 · US
Pitch Compositions For Spinning Into Carbon Articles And Methods Relating Thereto
US-2023416949-A1 · Dec 28, 2023 · US
Mesophase pitch for carbon fiber production using supercritical carbon dioxide
US-2023383189-A1 · Nov 30, 2023 · US
Mesophase pitch for carbon fiber production using supercritical carbon dioxide
US-11725146-B2 · Aug 15, 2023 · US
Fibrous carbon, method for manufacturing same, electrode mixture layer for non-aqueous-electrolyte secondary cell, electrode for non-aqueous-electrolyte secondary cell, and non-aqueous-electrolyte secondary cell
US-11532822-B2 · Dec 20, 2022 · US
Process for preparing carbon fibers
US-11519103-B2 · Dec 6, 2022 · US
Mesophase pitch for carbon fiber production using supercritical carbon dioxide
US-2022363995-A1 · Nov 17, 2022 · US
Mesophase pitch for carbon fiber production using supercritical carbon dioxide
US-11434429-B2 · Sep 6, 2022 · US
Carbon fiber aggregate and method for producing same, and electrode mixture layer for nonaqueous-electrolyte secondary battery
US-2021324545-A1 · Oct 21, 2021 · US
Preparation methods of high modulus carbon fiber (HMCF) and precursor (mesophase pitch (MP)) thereof
US-11149361-B1 · Oct 19, 2021 · US
Activated carbon
US-2021261442-A1 · Aug 26, 2021 · US
Activated carbon
US-2021261441-A1 · Aug 26, 2021 · US
Methods to produce carbon fibers from carbon pitches
US-2021180217-A1 · Jun 17, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D01F9/15?
- CPC D01F9/15 is the Cooperative Patent Classification code for “from coal pitch.”
- How many patents are filed under CPC D01F9/15 (from coal pitch)?
- Our database includes 36 publications tagged with this CPC code.
- Is patent activity under CPC D01F9/15 growing?
- Publication counts under this code: 5 in 2024 vs 3 in 2025 (latest complete years).