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Suction boxes with rolls
Suction boxes with 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 | D21F1/50 |
| Official title | Suction boxes with rolls |
| Display label | Suction boxes with rolls |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 1 |
| 2019 | 1 |
| 2021 | 1 |
| 2022 | 1 |
| 2024 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sealing strip system and sealing strip
US-11365514-B2 · Jun 21, 2022 · US
Sealing strip system and sealing strip
US-2021087747-A1 · Mar 25, 2021 · US
Pulp production arrangement and method
US-10227728-B2 · Mar 12, 2019 · US
Sealing device
US-9752683-B2 · Sep 5, 2017 · US
Pulp production arrangement and method
US-2016305067-A1 · Oct 20, 2016 · US
Sealing strip system
US-9447542-B2 · Sep 20, 2016 · US
Steel shell for a suction roll and a method of producing a steel product
US-2015252529-A1 · Sep 10, 2015 · US
Sealing strip system
US-2015184340-A1 · Jul 2, 2015 · US