Production method for precarbonized fiber bundle, production method for carbon fiber bundle, and precarbonization furnace
US-12516451-B2 · Jan 6, 2026 · US
in a tube or vessel
in a tube or vessel · 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 | D02J13/001 |
| Official title | {in a tube or vessel} |
| Display label | in a tube or vessel |
| Total patents | 39 |
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 | 6 |
| 2016 | 1 |
| 2017 | 7 |
| 2018 | 2 |
| 2019 | 3 |
| 2020 | 6 |
| 2021 | 6 |
| 2022 | 4 |
| 2023 | 1 |
| 2024 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Carbon fibers having improved strength and modulus and an associated method and apparatus for preparing same
US-2024301590-A1 · Sep 12, 2024 · US
Production method for precarbonized fiber bundle, production method for carbon fiber bundle, and precarbonization furnace
US-2024035205-A1 · Feb 1, 2024 · US
Liquid crystal polyester fibers and method for producing same
US-2023055144-A1 · Feb 23, 2023 · US
A process for producing a thermoplastic polyurethane fiber with low shrinkage, and the use of the fiber
US-2022145496-A1 · May 12, 2022 · US
Stabilized fiber bundle and method of manufacturing carbon fiber bundle
US-11319648-B2 · May 3, 2022 · US
Manufacturing of artificial muscle actuators
US-11299825-B2 · Apr 12, 2022 · US
Oxidation furnace
US-11236444-B2 · Feb 1, 2022 · US
Oxidation furnace
US-11092381-B2 · Aug 17, 2021 · US
Stabilized fiber bundle and method of manufacturing carbon fiber bundle
US-2021222330-A1 · Jul 22, 2021 · US
Fast torsional artificial muscles from twisted yarns of shape memory material
US-11065101-B2 · Jul 20, 2021 · US
Oxidation furnace
US-11053611-B2 · Jul 6, 2021 · US
Manufacturing Method for Protein Crimped Staple
US-2021040649-A1 · Feb 11, 2021 · US
Method of manufacturing acrylonitrile fiber bundle and method of manufacturing carbon fiber bundle
US-2021025082-A1 · Jan 28, 2021 · US
Process for heat setting twisted, bulked continuous filament yarn
US-2020370209-A1 · Nov 26, 2020 · US
Ovens, discharge nozzle plates for distribution of gas through an oven, and methods to operate an oven
US-10767283-B2 · Sep 8, 2020 · US
Discharge nozzle plate for center-to-ends fiber oxidation oven
US-10676847-B2 · Jun 9, 2020 · US
Method of producing liquid crystal polyester fibers
US-10584429-B2 · Mar 10, 2020 · US
Fast Torsional Artificial Muscles from Twisted Yarns of Shape Memory Material
US-2020022803-A1 · Jan 23, 2020 · US
Manufacturing of artificial muscle actuators
US-2020000572-A1 · Jan 2, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D02J13/001?
- CPC D02J13/001 is the Cooperative Patent Classification code for “in a tube or vessel.”
- How many patents are filed under CPC D02J13/001 (in a tube or vessel)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC D02J13/001 growing?
- Publication counts under this code: 1 in 2023 vs 2 in 2024 (latest complete years).