Methods for producing liquid crystal polymer filaments
US-2026084358-A1 · Mar 26, 2026 · US
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of synthetic polymers
of synthetic polymers · 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 | D01F13/04 |
| Official title | of synthetic polymers |
| Display label | of synthetic polymers |
| Total patents | 21 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 1 |
| 2020 | 1 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 3 |
| 2024 | 3 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of making articles from recyclable fabrics
US-12515378-B2 · Jan 6, 2026 · US
Continuous process for recycling
US-12467162-B2 · Nov 11, 2025 · US
Method for regenerating carbon fiber bundle and apparatus for regenerating carbon fiber bundle
US-2025236993-A1 · Jul 24, 2025 · US
Recycled mixed textile comprising cellulose and synthetic plastic
US-2024263360-A1 · Aug 8, 2024 · US
Method of reusing a mixed textile comprising cellulose and synthetic plastic
US-11987906-B2 · May 21, 2024 · US
Method of recycling carbon fiber
US-11976387-B2 · May 7, 2024 · US
Method of Making Articles from Recyclable Fabrics
US-2023382015-A1 · Nov 30, 2023 · US
Melt-spun thermoplastic polyurethane fiber
US-2023374193-A1 · Nov 23, 2023 · US
Continuous process for recycling
US-2023037211-A1 · Feb 2, 2023 · US
Method of recycling carbon fiber
US-2022010463-A1 · Jan 13, 2022 · US
Apparatus for continuous needleless electrospinning a nanoscale or submicron scale polymer fiber web onto a substrate
US-11085132-B2 · Aug 10, 2021 · US
Apparatus for continuous needleless electrospinning a nanoscale or submicron scale polymer fiber web onto a substrate
US-2021087711-A1 · Mar 25, 2021 · US
Method of reusing a mixed textile comprising cellulose and synthetic plastic
US-2021079564-A1 · Mar 18, 2021 · US
Preparation method of para-aramid nanofibers
US-10781536-B2 · Sep 22, 2020 · US
Preparation method of para-aramid nanofibers
US-2018155853-A1 · Jun 7, 2018 · US
Process for obtaining low residual aramid materials
US-9580863-B2 · Feb 28, 2017 · US
Process for removing residual spin solvent from a gel spun filament, the filament, multi-filament yarn and products comprising the filament
US-2016201225-A1 · Jul 14, 2016 · US
Process for removing residual spin solvent from a gel spun filament, the filament, multi-filament yarn and products comprising the filament
US-9260801-B2 · Feb 16, 2016 · US
Method for making an infusible polymer from a polyolefin
US-2015252122-A1 · Sep 10, 2015 · US