Melt spinning apparatus for extruding a first melt and a second melt
US-2025305185-A1 · Oct 2, 2025 · US
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Processes or materials for the preparation of spinnerettes
Processes or materials for the preparation of spinnerettes · 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 | D01D4/022 |
| Official title | {Processes or materials for the preparation of spinnerettes} |
| Display label | Processes or materials for the preparation of spinnerettes |
| Total patents | 16 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 1 |
| 2019 | 1 |
| 2020 | 2 |
| 2022 | 3 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method of making uniform spunbond filament nonwoven webs
US-2025092576-A1 · Mar 20, 2025 · US
Method of making uniform spunbond filament nonwoven webs
US-12188158-B2 · Jan 7, 2025 · US
Method of making uniform spunbond filament nonwoven webs
US-2024328035-A1 · Oct 3, 2024 · US
Method of making uniform spunbond filament nonwoven webs
US-12037713-B2 · Jul 16, 2024 · US
Spinning device and method for spinning up a spinning device
US-11795582-B2 · Oct 24, 2023 · US
Spinning device and method for spinning up a spinning device, and spin-up device
US-11718930-B2 · Aug 8, 2023 · US
Method of making uniform spunbond filament nonwoven webs
US-2023033920-A1 · Feb 2, 2023 · US
Method of making uniform spunbond filament nonwoven webs
US-2022307175-A1 · Sep 29, 2022 · US
Plastic optical fiber manufacturing method
US-2022206213-A1 · Jun 30, 2022 · US
Molding tool and method for producing a molding tool for extruding cellulose molded bodies
US-2022049375-A1 · Feb 17, 2022 · US
Spinning device and method for spinning up a spinning device, and spin-up device
US-2020299864-A1 · Sep 24, 2020 · US
Spinning device and method for spinning up a spinning device
US-2020263324-A1 · Aug 20, 2020 · US
Patterning of Thermally-Drawn Fibers and Textiles Including Such Fibers
US-2019136413-A1 · May 9, 2019 · US
Gusseted rotary spinners for producing fiber from molten material
US-2017247282-A1 · Aug 31, 2017 · US
Carbon fiber bundle and method for producing same
US-2016060793-A1 · Mar 3, 2016 · US