Carbon fibers having improved strength and modulus and an associated method and apparatus for preparing same
US-2024301590-A1 · Sep 12, 2024 · US
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Stretching in a gaseous atmosphere or in a fluid bed
Stretching in a gaseous atmosphere or in a fluid bed · 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 | D02J1/222 |
| Official title | {Stretching in a gaseous atmosphere or in a fluid bed} |
| Display label | Stretching in a gaseous atmosphere or in a fluid bed |
| Total patents | 22 |
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 | 2 |
| 2016 | 2 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 3 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for Manufacturing Protein Fiber, Method for Manufacturing Protein Fiber Fabric, and Shrink-Proofing Method for Protein Fiber
US-2023039765-A1 · Feb 9, 2023 · US
Method for manufacturing acrylonitrile based fiber bundle and method for manufacturing carbon fiber bundle
US-11286581-B2 · Mar 29, 2022 · US
Method and device for manufacturing protein fiber
US-11286286-B2 · Mar 29, 2022 · US
Readily fibrillative polyvinyl alcohol fiber and method for manufacturing same
US-11053610-B2 · Jul 6, 2021 · US
Method for manufacturing acrylonitrile based fiber bundle and method for manufacturing carbon fiber bundle
US-2021130984-A1 · May 6, 2021 · US
Method of manufacturing acrylonitrile fiber bundle and method of manufacturing carbon fiber bundle
US-2021025082-A1 · Jan 28, 2021 · US
Apparatus For Producing Ultrafine Fibers
US-2020407881-A1 · Dec 31, 2020 · US
Process for steam drawing carbon-fiber precursor acrylic fiber bundle
US-10604871-B2 · Mar 31, 2020 · US
Method and Device for Manufacturing Protein Fiber
US-2020031886-A1 · Jan 30, 2020 · US
High strength polyamide yarn
US-2019301057-A1 · Oct 3, 2019 · US
High strength polyamide yarn
US-10370780-B2 · Aug 6, 2019 · US
Method for manufacturing ultrafine fiber
US-10208408-B2 · Feb 19, 2019 · US
Readily fibrillative polyvinyl alcohol fiber and method for manufacturing same
US-2018179669-A1 · Jun 28, 2018 · US
High strength polyamide yarn
US-2018038019-A1 · Feb 8, 2018 · US
High tenacity high modulus uhmwpe fiber and the process of making
US-2018016710-A1 · Jan 18, 2018 · US
Process of making high tenacity, high modulus UHMWPE fiber
US-9765447-B2 · Sep 19, 2017 · US
Method for manufacturing ultrafine fiber
US-2017088980-A1 · Mar 30, 2017 · US
Method for producing carbon-fiber-precursor acrylic fiber bundle
US-9388516-B2 · Jul 12, 2016 · US
Process for manufacturing carbon-fiber precursor acrylic fiber bundle and steam drawing apparatus
US-2016151959-A1 · Jun 2, 2016 · US