Heat image forming device and method
US-11820121-B2 · Nov 21, 2023 · US
Ink-removing or collecting devices
Ink-removing or collecting devices · Cooperative Patent Classification (CPC)
Separating, mixing, shaping, printing, and transporting materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | B41F31/20 |
| Official title | Ink-removing or collecting devices |
| Display label | Ink-removing or collecting devices |
| Total patents | 70 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 11 |
| 2017 | 5 |
| 2018 | 5 |
| 2019 | 4 |
| 2020 | 8 |
| 2021 | 2 |
| 2022 | 11 |
| 2023 | 14 |
| 2024 | 2 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Fountain solution imaging using dry toner electrophotography
US-11794465-B2 · Oct 24, 2023 · US
Secondary roller for fountain solution contact angle pinning
US-11787167-B2 · Oct 17, 2023 · US
Fog development using a formative surface
US-11787166-B2 · Oct 17, 2023 · US
Solder paste bead recovery system and method
US-11766730-B2 · Sep 26, 2023 · US
Printing system
US-11701891-B2 · Jul 18, 2023 · US
Method of creating a printed product
US-2023150256-A1 · May 18, 2023 · US
Selective wetting of a roller
US-11638927-B2 · May 2, 2023 · US
Liquid absorber and printing apparatus
US-2022379597-A1 · Dec 1, 2022 · US
Printing liquid supply device, printing liquid circulation device and printing machine
US-11479038-B2 · Oct 25, 2022 · US
Two-component drip edge
US-11420437-B2 · Aug 23, 2022 · US
Solder paste bead recovery system and method
US-2022241883-A1 · Aug 4, 2022 · US
Matrix-addressed heat image forming device
US-2022227115-A1 · Jul 21, 2022 · US
Heat image forming device and method
US-2022227142-A1 · Jul 21, 2022 · US
Fountain solution contact angle pinning on secondary roller
US-2022227117-A1 · Jul 21, 2022 · US
Secondary roller for fountain solution contact angle pinning
US-2022227125-A1 · Jul 21, 2022 · US
Fog development using a formative surface
US-2022227123-A1 · Jul 21, 2022 · US
Fountain solution imaging using dry toner electrophotography
US-2022227116-A1 · Jul 21, 2022 · US
Solder paste bead recovery system and method
US-11318549-B2 · May 3, 2022 · US
Printing system
US-2021300048-A1 · Sep 30, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B41F31/20?
- CPC B41F31/20 is the Cooperative Patent Classification code for “Ink-removing or collecting devices.”
- How many patents are filed under CPC B41F31/20 (Ink-removing or collecting devices)?
- Our database includes 70 publications tagged with this CPC code.
- Is patent activity under CPC B41F31/20 growing?
- Publication counts under this code: 2 in 2024 vs 2 in 2025 (latest complete years).