Sheet manufacturing apparatus and method of manufacturing sheets
US-2025171961-A1 · May 29, 2025 · US
Means for regulating the pressure
Means for regulating the pressure · 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 | D21F3/06 |
| Official title | Means for regulating the pressure |
| Display label | Means for regulating the pressure |
| Total patents | 27 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 6 |
| 2018 | 2 |
| 2019 | 3 |
| 2021 | 3 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Information providing apparatus, information providing method, and non-transitory computer readable recording medium
US-2024410834-A1 · Dec 12, 2024 · US
Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press
US-2024401273-A1 · Dec 5, 2024 · US
Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press
US-12077914-B2 · Sep 3, 2024 · US
Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press
US-2023250584-A1 · Aug 10, 2023 · US
Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press
US-11629461-B2 · Apr 18, 2023 · US
Sheet manufacturing apparatus and control method for sheet manufacturing apparatus
US-11313078-B2 · Apr 26, 2022 · US
Sheet manufacturing apparatus and control method for sheet manufacturing apparatus
US-2021277602-A1 · Sep 9, 2021 · US
Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press
US-2021148049-A1 · May 20, 2021 · US
Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press
US-10941521-B2 · Mar 9, 2021 · US
Monitoring upstream machine wires and felts
US-10519599-B2 · Dec 31, 2019 · US
Monitoring applicator rods
US-10378150-B2 · Aug 13, 2019 · US
Monitoring applicator rods and applicator rod nips
US-10370795-B2 · Aug 6, 2019 · US
Monitoring upstream machine wires and felts
US-2018066398-A1 · Mar 8, 2018 · US
Press arrangement
US-9885151-B2 · Feb 6, 2018 · US
Monitoring upstream machine wires and felts
US-9816232-B2 · Nov 14, 2017 · US
Monitoring applicator rods
US-2017275824-A1 · Sep 28, 2017 · US
Monitoring applicator rods
US-9677225-B2 · Jun 13, 2017 · US
Press Arrangement
US-2017114498-A1 · Apr 27, 2017 · US
Method and apparatus for measuring and removing rotational variability from a nip pressure profile of a covered roll of a nip press
US-2017114499-A1 · Apr 27, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC D21F3/06?
- CPC D21F3/06 is the Cooperative Patent Classification code for “Means for regulating the pressure.”
- How many patents are filed under CPC D21F3/06 (Means for regulating the pressure)?
- Our database includes 27 publications tagged with this CPC code.
- Is patent activity under CPC D21F3/06 growing?
- Publication counts under this code: 3 in 2024 vs 1 in 2025 (latest complete years).