Fibrillated Fiber And Method For Preparing The Same
US-2023272557-A1 · Aug 31, 2023 · US
by fibrillation of films or filaments
by fibrillation of films or filaments · 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 | D01D5/423 |
| Official title | {by fibrillation of films or filaments} |
| Display label | by fibrillation of films or filaments |
| Total patents | 65 |
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 | 7 |
| 2016 | 6 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 11 |
| 2020 | 6 |
| 2021 | 8 |
| 2022 | 9 |
| 2023 | 3 |
| 2024 | 1 |
| 2025 | 2 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for producing chemically modified cellulose fiber
US-11629454-B2 · Apr 18, 2023 · US
Carbon fibers and method of fabrication thereof
US-2023057063-A1 · Feb 23, 2023 · US
Polymer Complex
US-2022372276-A1 · Nov 24, 2022 · US
Polymer Complex
US-2022372263-A1 · Nov 24, 2022 · US
Core-sheath fibers, nonwoven fibrous web, and respirator including the same
US-2022372666-A1 · Nov 24, 2022 · US
Processes for forming fluoropolymer articles
US-11421086-B2 · Aug 23, 2022 · US
Micro/nano-layered filaments
US-2022136138-A1 · May 5, 2022 · US
Novel nano-ribbons from multilayer coextruded film
US-2022136140-A1 · May 5, 2022 · US
Process and device for splitting a tape
US-2022136139-A1 · May 5, 2022 · US
Method of producing a yarn and a fabric having the look and feel of natural fibers
US-2022112631-A1 · Apr 14, 2022 · US
Conductive polymer microfiber mesh structure, manufacturing method thereof and electrode for flexible electronic device using the same
US-2022020509-A1 · Jan 20, 2022 · US
Process and device for splitting a tape
US-11208737-B2 · Dec 28, 2021 · US
Method of producing a yarn and a fabric having the look and feel of natural fibers
US-11203820-B2 · Dec 21, 2021 · US
Dissolvable fibrous web structure article comprising active agents
US-11142848-B2 · Oct 12, 2021 · US
Production of micro- and nano-fibers by continuous microlayer coextrusion
US-11111606-B2 · Sep 7, 2021 · US
Process for the production of nano-fibrillar cellulose gels
US-2021261781-A1 · Aug 26, 2021 · US
Process for the production of nano-fibrillar cellulose gels
US-10975242-B2 · Apr 13, 2021 · US
Method for producing chemically modified cellulose fiber
US-2021062406-A1 · Mar 4, 2021 · US
Partial split-fiber fiber bundle, intermediate base material, molding, and method of producing same
US-2021032067-A1 · Feb 4, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D01D5/423?
- CPC D01D5/423 is the Cooperative Patent Classification code for “by fibrillation of films or filaments.”
- How many patents are filed under CPC D01D5/423 (by fibrillation of films or filaments)?
- Our database includes 65 publications tagged with this CPC code.
- Is patent activity under CPC D01D5/423 growing?
- Publication counts under this code: 1 in 2024 vs 2 in 2025 (latest complete years).