Filtration recovery device and filtration recovery method
US-12528033-B2 · Jan 20, 2026 · US
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for washing
for washing · 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 | B01D29/78 |
| Official title | for washing |
| Display label | for washing |
| Total patents | 22 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 6 |
| 2021 | 5 |
| 2024 | 3 |
| 2025 | 1 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter cake sonication
US-2025214006-A1 · Jul 3, 2025 · US
Filtration recovery device and filtration recovery method
US-2024316480-A1 · Sep 26, 2024 · US
Filtration recovery device and filtration recovery method
US-12030002-B2 · Jul 9, 2024 · US
Mechanical separation devices
US-11969673-B2 · Apr 30, 2024 · US
Design improvements for mechanical separation devices
US-2021394089-A1 · Dec 23, 2021 · US
Multistage fiber filtering apparatus capable of selectively filtering
US-11192050-B2 · Dec 7, 2021 · US
Mechanical separation devices
US-11103811-B2 · Aug 31, 2021 · US
Fiber filtering apparatus
US-11000787-B2 · May 11, 2021 · US
Filtration recovery device and filtration recovery method
US-2021060457-A1 · Mar 4, 2021 · US
Multistage fiber filtering apparatus capable of selectively filtering
US-2020179838-A1 · Jun 11, 2020 · US
Fiber filtering apparatus
US-2020122060-A1 · Apr 23, 2020 · US
Multistage fiber filtering apparatus capable of selectively filtering
US-10596495-B2 · Mar 24, 2020 · US
Animal skin substrate treatment method and apparatus
US-10590499-B2 · Mar 17, 2020 · US
Fiber filtering apparatus
US-10549217-B2 · Feb 4, 2020 · US
Method for washing hollow fiber membrane module and hollow fiber membrane filtration device
US-2020016544-A1 · Jan 16, 2020 · US
Animal skin substrate treatment method and apparatus
US-2019144959-A1 · May 16, 2019 · US
Design improvements for mechanical separation devices
US-2018126302-A1 · May 10, 2018 · US
Fiber filtering apparatus
US-2018028945-A1 · Feb 1, 2018 · US
Multistage Fiber Filtering Apparatus Capable of Selectively Filtering
US-2017368482-A1 · Dec 28, 2017 · US