Debris removal from degasser probe
US-2026078644-A1 · Mar 19, 2026 · US
Systems for applying vacuum to filters
Systems for applying vacuum to filters · 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 | B01D2201/204 |
| Official title | Systems for applying vacuum to filters |
| Display label | Systems for applying vacuum to filters |
| Total patents | 54 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 2 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 2 |
| 2021 | 8 |
| 2022 | 3 |
| 2023 | 9 |
| 2024 | 9 |
| 2025 | 9 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Drum washer with gravity assist drainage
US-12551825-B2 · Feb 17, 2026 · US
Fluid and solid material separator
US-12491456-B2 · Dec 9, 2025 · US
Independent double-negative-pressure shale shaker
US-12427452-B2 · Sep 30, 2025 · US
Vacuum assisted filtration
US-12427451-B2 · Sep 30, 2025 · US
Liquid filtering method and system
US-12285708-B2 · Apr 29, 2025 · US
Separation apparatus and separation method
US-2025114729-A1 · Apr 10, 2025 · US
Open-closed loop perfusion reservoir
US-2025090734-A1 · Mar 20, 2025 · US
Devices and methods for the integrated filtration, drying, and mechanical processing of active pharmaceutical ingredients
US-12251651-B2 · Mar 18, 2025 · US
Human waste collection and separation system
US-2025059078-A1 · Feb 20, 2025 · US
Suction strainer
US-2025018319-A1 · Jan 16, 2025 · US
Device suitable for vacuum assisted filtration
US-12172131-B2 · Dec 24, 2024 · US
Sample collecting device and sample collecting apparatus
US-12130216-B2 · Oct 29, 2024 · US
Fluid and solid material separator
US-12083457-B2 · Sep 10, 2024 · US
Device suitable for vacuum assisted filtration
US-2024226811-A1 · Jul 11, 2024 · US
Reductant tank assembly with multiple connection tank header
US-11994054-B2 · May 28, 2024 · US
Vacuum assisted filtration
US-2024149193-A1 · May 9, 2024 · US
Device suitable for vacuum assisted filtration
US-11925904-B2 · Mar 12, 2024 · US
Devices and methods for the integrated filtration, drying, and mechanical processing of active pharmaceutical ingredients
US-2024066443-A1 · Feb 29, 2024 · US
Devices and methods for the integrated filtration, drying, and mechanical processing of active pharmaceutical ingredients
US-11911719-B2 · Feb 27, 2024 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2201/204?
- CPC B01D2201/204 is the Cooperative Patent Classification code for “Systems for applying vacuum to filters.”
- How many patents are filed under CPC B01D2201/204 (Systems for applying vacuum to filters)?
- Our database includes 54 publications tagged with this CPC code.
- Is patent activity under CPC B01D2201/204 growing?
- Publication counts under this code: 9 in 2024 vs 9 in 2025 (latest complete years).