Layered tissue comprising long, high-coarseness wood pulp fibers
US-2021340710-A1 · Nov 4, 2021 · US
Pressure rolls
Pressure rolls · 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 | D21F3/08 |
| Official title | Pressure rolls |
| Display label | Pressure rolls |
| Total patents | 101 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 14 |
| 2016 | 14 |
| 2017 | 8 |
| 2018 | 9 |
| 2019 | 4 |
| 2020 | 9 |
| 2021 | 7 |
| 2022 | 12 |
| 2023 | 9 |
| 2024 | 7 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Press cover, use thereof, and press roll and shoe press
US-2021324579-A1 · Oct 21, 2021 · US
Fibrous Web Manufacturing Roll with Cover Having Functional Layer with Nanocellulose (as amended)
US-2020407917-A1 · Dec 31, 2020 · US
Press cover, and process for production of such a press cover
US-2020291576-A1 · Sep 17, 2020 · US
Learning device, fibrous feedstock recycling apparatus, learning method, and storage medium
US-2020165092-A1 · May 28, 2020 · US
Method for producing or machining a roller, roller and functional layer of a roller
US-10655276-B2 · May 19, 2020 · US
Method and system associated with a sensing roll including pluralities of sensors and a meting roll for collecting roll data
US-10641667-B2 · May 5, 2020 · US
Sheet manufacturing apparatus
US-10619302-B2 · Apr 14, 2020 · US
Machine and method for the production of a fibrous web
US-2020087857-A1 · Mar 19, 2020 · US
Method and system associated with a sensing roll and a mating roll for collecting data including first and second sensor arrays
US-10533909-B2 · Jan 14, 2020 · US
Measuring device, web processing device, fiber feedstock recycling device, and measuring method
US-2020011010-A1 · Jan 9, 2020 · US
Monitoring upstream machine wires and felts
US-10519599-B2 · Dec 31, 2019 · US
Method and system associated with a sensing roll and a mating roll for collecting roll data
US-10378980-B2 · Aug 13, 2019 · US
Monitoring applicator rods and applicator rod nips
US-10370795-B2 · Aug 6, 2019 · US
Roll and its use
US-2019161913-A1 · May 30, 2019 · US
Sheet manufacturing apparatus
US-2018355556-A1 · Dec 13, 2018 · US
Roll cover
US-10145065-B2 · Dec 4, 2018 · US
Sheet manufacturing apparatus
US-10100466-B2 · Oct 16, 2018 · US
Monitoring upstream machine wires and felts
US-2018066398-A1 · Mar 8, 2018 · US
Method and system associated with a sensing roll and a mating roll for collecting data including first and second sensor arrays
US-2018045591-A1 · Feb 15, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D21F3/08?
- CPC D21F3/08 is the Cooperative Patent Classification code for “Pressure rolls.”
- How many patents are filed under CPC D21F3/08 (Pressure rolls)?
- Our database includes 101 publications tagged with this CPC code.
- Is patent activity under CPC D21F3/08 growing?
- Publication counts under this code: 7 in 2024 vs 7 in 2025 (latest complete years).