Re-dispersed microfibrillated cellulose
US-2019382510-A1 · Dec 19, 2019 · US
De-watering (de-watering in general F26B); {Elimination of cooking or pulp-treating liquors from the pulp}(D21C9/002, D21C9/02 take precedence; paper-making machines D21F; strainers in digesters D21C7/00; presses in general B30B)
De-watering (de-watering in general F26B); {Elimination of cooking or pulp-treating liquors from the pulp}(D21C9/002, D21C9/02 take precedence; paper-making machines D21F; strainers in digesters D21C7/00; presses in general B30B) · 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 | D21C9/18 |
| Official title | De-watering (de-watering in general F26B); {Elimination of cooking or pulp-treating liquors from the pulp}(D21C9/002, D21C9/02 take precedence; paper-making machines D21F; strainers in digesters D21C7/00; presses in general B30B) |
| Display label | De-watering (de-watering in general F26B); {Elimination of cooking or pulp-treating liquors from the pulp}(D21C9/002, D21C9/02 take precedence; paper-making machines D21F; strainers in digesters D21C7/00; presses in general B30B) |
| Total patents | 129 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 13 |
| 2016 | 12 |
| 2017 | 14 |
| 2018 | 10 |
| 2019 | 15 |
| 2020 | 18 |
| 2021 | 9 |
| 2022 | 6 |
| 2023 | 12 |
| 2024 | 10 |
| 2025 | 9 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Treated fibers and fibrous structures comprising the same
US-2019376235-A1 · Dec 12, 2019 · US
Treated fibers and fibrous structures comprising the same
US-10487452-B1 · Nov 26, 2019 · US
Re-dispersed microfibrillated cellulose
US-10435482-B2 · Oct 8, 2019 · US
Crosslinked cellulose as precursor in production of high-grade cellulose derivatives and related technology
US-10428459-B2 · Oct 1, 2019 · US
Method And System For Producing Market Pulp And Products Thereof
US-2019284760-A1 · Sep 19, 2019 · US
Method for manufacturing aramid pulp comprising pvp
US-2019177917-A1 · Jun 13, 2019 · US
Pretreatment process of a ligno-cellulosic feedstock
US-10316466-B2 · Jun 11, 2019 · US
Process for dewatering microfibrillated cellulose
US-10240289-B2 · Mar 26, 2019 · US
Pulp production arrangement and method
US-10227728-B2 · Mar 12, 2019 · US
Method for making modified cellulose products
US-10214855-B2 · Feb 26, 2019 · US
Device for Filtering Fiber Suspensions
US-2018369724-A1 · Dec 27, 2018 · US
Crosslinked kraft pulp compositions and method
US-2018363245-A1 · Dec 20, 2018 · US
Filtration method and production process of cellulose nanofiber dispersion
US-2018318740-A1 · Nov 8, 2018 · US
Dry mixed re-dispersible cellulose filament/carrier product and the method of making the same
US-10087580-B2 · Oct 2, 2018 · US
Arrangement and system for a treatment process
US-10047408-B2 · Aug 14, 2018 · US
Process and a dissolving pulp manufactured by the process
US-10023995-B2 · Jul 17, 2018 · US
Crosslinked cellulose as precursor in production of high-grade cellulose derivatives and related technology
US-2018187372-A1 · Jul 5, 2018 · US
Device for Dewatering Feedstock That Is Pourable or Free-Flowing
US-2018154599-A1 · Jun 7, 2018 · US
Methods for the production of high solids nanocellulose
US-2018094383-A1 · Apr 5, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D21C9/18?
- CPC D21C9/18 is the Cooperative Patent Classification code for “De-watering (de-watering in general F26B); {Elimination of cooking or pulp-treating liquors from the pulp}(D21C9/002, D21C9/02 take precedence; paper-making machines D21F; strainers in digesters D21C7/00; presses in general B30B).”
- How many patents are filed under CPC D21C9/18 (De-watering (de-watering in general F26B); {Elimination of cooking or pulp-treating liquors from the pulp}(D21C9/002, D21C9/02 take precedence; paper-making machines D21F; strainers in digesters D21C7/00; presses in general B30B))?
- Our database includes 129 publications tagged with this CPC code.
- Is patent activity under CPC D21C9/18 growing?
- Publication counts under this code: 10 in 2024 vs 9 in 2025 (latest complete years).