Pulping methods, methods for manufacturing paperboard, and paperboard structures
US-12516472-B2 · Jan 6, 2026 · US
Physical methods for facilitating impregnation
Physical methods for facilitating impregnation · 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 | D21C1/10 |
| Official title | Physical methods for facilitating impregnation |
| Display label | Physical methods for facilitating impregnation |
| Total patents | 32 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 3 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for manufacturing bleached pulp from a feedstock comprising recycled paper
US-12331462-B2 · Jun 17, 2025 · US
High brightness non-wood pulp
US-2025146219-A1 · May 8, 2025 · US
High brightness non-wood pulp
US-12227900-B2 · Feb 18, 2025 · US
Non-wood pulp having high brightness and low debris
US-2025012010-A1 · Jan 9, 2025 · US
Lignocellulosic biomass treatment method
US-12152110-B2 · Nov 26, 2024 · US
Non-wood pulp having high brightness and low debris
US-12146262-B2 · Nov 19, 2024 · US
Non-wood pulp having high brightness and low debris
US-2024018723-A1 · Jan 18, 2024 · US
High brightness non-wood pulp
US-2023407562-A1 · Dec 21, 2023 · US
Process for production of cellulose particles
US-2023383108-A1 · Nov 30, 2023 · US
Method for manufacturing bleached pulp from a feedstock comprising recycled paper
US-2023073443-A1 · Mar 9, 2023 · US
Method and system for treating biomass
US-2023043719-A1 · Feb 9, 2023 · US
Method and device for treating biomass
US-11492752-B2 · Nov 8, 2022 · US
Processes for biomass treatments
US-2022213276-A1 · Jul 7, 2022 · US
Pulping Methods, Methods for Manufacturing Paperboard, and Paperboard Structures
US-2022074139-A1 · Mar 10, 2022 · US
Method for impregnating biomass and device for impregnating biomass
US-11186949-B2 · Nov 30, 2021 · US
Method and device for treating biomass
US-2021140105-A1 · May 13, 2021 · US
Lignocellulosic biomass treatment method
US-2020339761-A1 · Oct 29, 2020 · US
A cellulose paper composite and process for preparation thereof
US-2020340182-A1 · Oct 29, 2020 · US
Paper products and methods and systems for manufacturing such products
US-10619308-B2 · Apr 14, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D21C1/10?
- CPC D21C1/10 is the Cooperative Patent Classification code for “Physical methods for facilitating impregnation.”
- How many patents are filed under CPC D21C1/10 (Physical methods for facilitating impregnation)?
- Our database includes 32 publications tagged with this CPC code.
- Is patent activity under CPC D21C1/10 growing?
- Publication counts under this code: 3 in 2024 vs 4 in 2025 (latest complete years).