Films and membranes of poly(aryl ketones) and methods of casting the same from solution
US-2018371192-A1 · Dec 27, 2018 · US
Dry spinning methods {(D01D5/0038 takes precedence)}
Dry spinning methods {(D01D5/0038 takes precedence)} · 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 | D01D5/04 |
| Official title | Dry spinning methods {(D01D5/0038 takes precedence)} |
| Display label | Dry spinning methods {(D01D5/0038 takes precedence)} |
| Total patents | 174 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 18 |
| 2016 | 11 |
| 2017 | 19 |
| 2018 | 17 |
| 2019 | 14 |
| 2020 | 21 |
| 2021 | 15 |
| 2022 | 21 |
| 2023 | 13 |
| 2024 | 11 |
| 2025 | 11 |
| 2026 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Spinning process
US-10156028-B2 · Dec 18, 2018 · US
Membrane-forming dope for carbon membranes and a method for producing a carbon hollow fiber membrane using the same
US-10150085-B2 · Dec 11, 2018 · US
Nanofiber and nonwoven fabric
US-2018327932-A1 · Nov 15, 2018 · US
Films and membranes of poly (aryl ketones) and methods of casting the same from solution
US-10087295-B2 · Oct 2, 2018 · US
Dissolvable fibrous web structure article comprising active agents
US-2018258555-A1 · Sep 13, 2018 · US
Graphene fiber and method of manufacturing same
US-2018209075-A1 · Jul 26, 2018 · US
Photosensitive fibers and method for forming fiber pattern
US-2018148859-A1 · May 31, 2018 · US
Spandex from poly(tetramethylene-co-ethyleneether)glycols blended with polymeric glycols
US-2018118874-A9 · May 3, 2018 · US
Fibers of UHMWPE and a process for producing thereof
US-9957643-B2 · May 1, 2018 · US
Methods, apparatus, and systems for fabrication of polymeric nano- and micro-fibers in aligned configurations
US-9902932-B2 · Feb 27, 2018 · US
Acrylic fiber for artificial hair, method for producing same, and head decoration product comprising same
US-2018014594-A1 · Jan 18, 2018 · US
Method for producing high tensile strength nanofiber yarn
US-2017356102-A1 · Dec 14, 2017 · US
Membrane-forming dope for carbon membranes and a method for producing a carbon hollow fiber membrane using the same
US-2017296978-A1 · Oct 19, 2017 · US
Copolymer fibers and yarns and processes for making same
US-9790622-B2 · Oct 17, 2017 · US
Spinneret for electrostatic spinning
US-2017218538-A1 · Aug 3, 2017 · US
Process for producing purified polysaccharide fibers, purified polysaccharide fibers and tires
US-9702062-B2 · Jul 11, 2017 · US
Solution-dyed protein fiber and method for producing same
US-9689089-B2 · Jun 27, 2017 · US
Nonwoven glucan webs
US-2017167063-A1 · Jun 15, 2017 · US
Filter materials and filters made therefrom
US-2017156393-A1 · Jun 8, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D01D5/04?
- CPC D01D5/04 is the Cooperative Patent Classification code for “Dry spinning methods {(D01D5/0038 takes precedence)}.”
- How many patents are filed under CPC D01D5/04 (Dry spinning methods {(D01D5/0038 takes precedence)})?
- Our database includes 174 publications tagged with this CPC code.
- Is patent activity under CPC D01D5/04 growing?
- Publication counts under this code: 11 in 2024 vs 11 in 2025 (latest complete years).