Sheet manufacturing apparatus
US-12529188-B2 · Jan 20, 2026 · US
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Regulating pulp flow
Regulating pulp flow · 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 | D21F1/06 |
| Official title | Regulating pulp flow |
| Display label | Regulating pulp flow |
| Total patents | 13 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 1 |
| 2026 | 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
Sheet manufacturing apparatus
US-2023383462-A1 · Nov 30, 2023 · US
Sheet manufacturing apparatus
US-2023383463-A1 · Nov 30, 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
Method of and an arrangement for adding at least one additional stock component to an approach flow system of a fiber web machine
US-11459700-B2 · Oct 4, 2022 · US
Paper products having increased bending stiffness and cross-direction strength and methods for making the same
US-11441268-B2 · Sep 13, 2022 · US
Method of and an arrangement for adding at least one additional stock component to an approach flow system of a fiber web machine
US-2021189650-A1 · Jun 24, 2021 · US
Paper products having increased bending stiffness and cross-direction strength and methods for making the same
US-2019211503-A1 · Jul 11, 2019 · US
Method of and an arrangement for transferring a process liquid, an industrial facility and a method of simplifying the layout of such
US-2017268170-A1 · Sep 21, 2017 · US
Method of and an arrangement for transferring a process liquid, an industrial facility and a method of simplifying the layout of such
US-9708762-B2 · Jul 18, 2017 · US
Method of and an arrangement for transferring a process liquid, an industrial facility and a method of simplifying the layout of such
US-2016319484-A1 · Nov 3, 2016 · US
Method of and an arrangement for transferring a process liquid, an industrial facility and a method of simplifying the layout of such
US-9416491-B2 · Aug 16, 2016 · US