Breathable, wicking nonwoven material
US-2024251896-A1 · Aug 1, 2024 · US
characterised by the shape of the fibres
characterised by the shape of the fibres · 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 | D04H1/4391 |
| Official title | characterised by the shape of the fibres |
| Display label | characterised by the shape of the fibres |
| Total patents | 146 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 10 |
| 2016 | 11 |
| 2017 | 17 |
| 2018 | 13 |
| 2019 | 10 |
| 2020 | 15 |
| 2021 | 13 |
| 2022 | 14 |
| 2023 | 13 |
| 2024 | 18 |
| 2025 | 8 |
| 2026 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Shaped nonwoven fabric
US-2019382932-A1 · Dec 19, 2019 · US
Method for nonwoven textiles with variable zonal properties
US-2019368089-A1 · Dec 5, 2019 · US
Scaffold system for tissue repair
US-2019321202-A1 · Oct 24, 2019 · US
Scaffold system for tissue repair
US-10376394-B2 · Aug 13, 2019 · US
Spunbonded Nonwoven With Crimped Fine Fibers
US-2019233993-A1 · Aug 1, 2019 · US
Nonwoven sterile packaging
US-2019210754-A1 · Jul 11, 2019 · US
Carded staple fiber nonwovens
US-10307309-B2 · Jun 4, 2019 · US
Nonwoven laminate fabric comprising meltblown and spundbond layers
US-2019136426-A1 · May 9, 2019 · US
Ordered Nanotube Fabrics
US-2018345316-A1 · Dec 6, 2018 · US
Methods for arranging nanoscopic elements within networks, fabrics and films
US-10124367-B2 · Nov 13, 2018 · US
Garment
US-2018271182-A1 · Sep 27, 2018 · US
Leather-like fabric
US-2018230645-A1 · Aug 16, 2018 · US
Scaffold system for tissue repair
US-2018200084-A1 · Jul 19, 2018 · US
Nonwoven fabric and absorbent article using same
US-2018177645-A1 · Jun 28, 2018 · US
Hollow Porous Fibers
US-2018179668-A1 · Jun 28, 2018 · US
Method for producing carbon nanotube web, method for producing carbon nanotube collected product, and apparatus for producing carbon nanotube web
US-2018179064-A1 · Jun 28, 2018 · US
Fibrous sheet
US-2018133062-A1 · May 17, 2018 · US
Process of producing a melt-spinnable fiber using thermoplastic polymer and destructured starch
US-9925706-B2 · Mar 27, 2018 · US
Blowable natural down alternative
US-2018051402-A1 · Feb 22, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D04H1/4391?
- CPC D04H1/4391 is the Cooperative Patent Classification code for “characterised by the shape of the fibres.”
- How many patents are filed under CPC D04H1/4391 (characterised by the shape of the fibres)?
- Our database includes 146 publications tagged with this CPC code.
- Is patent activity under CPC D04H1/4391 growing?
- Publication counts under this code: 18 in 2024 vs 8 in 2025 (latest complete years).