Method for manufacturing a film comprising highly refined cellulose fibers
US-12366036-B2 · Jul 22, 2025 · US
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in Fourdrinier machines
in Fourdrinier machines · 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 | D21F1/20 |
| Official title | in Fourdrinier machines |
| Display label | in Fourdrinier machines |
| Total patents | 8 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2019 | 1 |
| 2022 | 1 |
| 2023 | 4 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Paper products having increased bending stiffness and cross-direction strength and methods for making the same
US-12146264-B2 · Nov 19, 2024 · US
Web transportation apparatus and fiber article producing apparatus
US-11807985-B2 · Nov 7, 2023 · US
Method for manufacturing a film comprising highly refined cellulose fibers
US-2023313464-A1 · Oct 5, 2023 · US
Paper products having increased bending stiffness and cross-direction strength and methods for making the same
US-2023250582-A1 · Aug 10, 2023 · US
Web transportation apparatus and fiber article producing apparatus
US-2023075175-A1 · Mar 9, 2023 · US
Paper products having increased bending stiffness and cross-direction strength and methods for making the same
US-11441268-B2 · Sep 13, 2022 · US
Paper products having increased bending stiffness and cross-direction strength and methods for making the same
US-2019211503-A1 · Jul 11, 2019 · US