Method for manufacturing films comprising highly refined cellulose fibers
US-12467202-B2 · Nov 11, 2025 · US
using endless screening belts
using endless screening belts · 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 | D21F1/80 |
| Official title | using endless screening belts |
| Display label | using endless screening belts |
| Total patents | 40 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2016 | 4 |
| 2019 | 5 |
| 2020 | 5 |
| 2021 | 2 |
| 2022 | 6 |
| 2023 | 6 |
| 2024 | 6 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Method for determining film thickness, method for producing a film and device for producing a film
US-12398996-B2 · Aug 26, 2025 · US
Headbox for Manufacturing a Substrate
US-2025263889-A1 · Aug 21, 2025 · US
Sheet manufacturing apparatus
US-2025092603-A1 · Mar 20, 2025 · US
Laminated papermaking belt
US-12241204-B2 · Mar 4, 2025 · US
Method for manufacturing a barrier film comprising highly refined cellulose
US-2024229358-A9 · Jul 11, 2024 · US
System and method of producing micro fibrillated cellulose (MFC)
US-12006628-B2 · Jun 11, 2024 · US
Foam-Based Manufacturing System and Process
US-2024175204-A1 · May 30, 2024 · US
Method for fractionation of highly refined cellulose
US-2024141588-A1 · May 2, 2024 · US
Method for manufacturing a barrier film comprising highly refined cellulose
US-2024133118-A1 · Apr 25, 2024 · US
Foam-based manufacturing system and process
US-11932988-B2 · Mar 19, 2024 · US
Method for manufacturing films comprising highly refined cellulose fibers
US-2023349099-A1 · Nov 2, 2023 · US
Dewatering device
US-11781269-B2 · Oct 10, 2023 · US
System and Method of Producing Micro Fibrillated Cellulose (MFC)
US-2023193558-A1 · Jun 22, 2023 · US
Foam-based manufacturing system and process
US-2023074870-A1 · Mar 9, 2023 · US
Method for identifying defects in a film, method and device for producing a film
US-2023009598-A1 · Jan 12, 2023 · US
Method for determining film thickness, method for producing a film and device for producing a film
US-2023003509-A1 · Jan 5, 2023 · US
Laminated papermaking belt
US-2022325474-A1 · Oct 13, 2022 · US
Laminated papermaking belt
US-11401658-B2 · Aug 2, 2022 · US
Water removal between wire and wet press of a paper mill process
US-11332885-B2 · May 17, 2022 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D21F1/80?
- CPC D21F1/80 is the Cooperative Patent Classification code for “using endless screening belts.”
- How many patents are filed under CPC D21F1/80 (using endless screening belts)?
- Our database includes 40 publications tagged with this CPC code.
- Is patent activity under CPC D21F1/80 growing?
- Publication counts under this code: 6 in 2024 vs 5 in 2025 (latest complete years).