Purification system
US-2026061368-A1 · Mar 5, 2026 · US
by filtration
by filtration · 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 | B01D53/266 |
| Official title | {by filtration} |
| Display label | by filtration |
| Total patents | 60 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 9 |
| 2019 | 4 |
| 2020 | 7 |
| 2021 | 2 |
| 2022 | 8 |
| 2023 | 8 |
| 2024 | 7 |
| 2025 | 7 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Gas-liquid separator
US-2025360446-A1 · Nov 27, 2025 · US
Coalescing filter element
US-12478909-B2 · Nov 25, 2025 · US
Server-level filtration of secondary fluid network for direct-to-chip cooling
US-2025358977-A1 · Nov 20, 2025 · US
Single wafer reactor, low temperature, thermal silicon nitride deposition
US-2025285858-A1 · Sep 11, 2025 · US
Heat exchanger with integrated horizontal filtration
US-2025214032-A1 · Jul 3, 2025 · US
Liquid Desiccant Air Conditioner Modules Having A Liquid Desiccant Mist Trap
US-2025207815-A1 · Jun 26, 2025 · US
Hygiene management device for entrance hall
US-12264837-B2 · Apr 1, 2025 · US
Air sanitation device for refrigerator and refrigerator
US-12140365-B2 · Nov 12, 2024 · US
Refrigerator
US-12140366-B2 · Nov 12, 2024 · US
Gas dehydration composition and process to reduce solvent losses
US-12128353-B2 · Oct 29, 2024 · US
Transepidermal Water Loss Measurement Device
US-2024252099-A1 · Aug 1, 2024 · US
Liquid separation constituent, liquid separation filter, compressor system, and method of producing liquid separation filter having multilayer structure
US-2024198285-A1 · Jun 20, 2024 · US
Mist and vapor eliminating filter, device, system and method of use
US-2024189752-A1 · Jun 13, 2024 · US
Stack plate, stack plate device and humidifier
US-2024186542-A1 · Jun 6, 2024 · US
System and method for mitigating particulate intrusion to an air intake system of a gas turbine system with intrusion protective coatings tailored to locale of operation
US-11828230-B2 · Nov 28, 2023 · US
System and method for absorbing moisture within a face mask
US-2023354931-A1 · Nov 9, 2023 · US
Compressed air drying unit
US-2023264144-A1 · Aug 24, 2023 · US
System and method for absorbing moisture within a face mask
US-11723421-B2 · Aug 15, 2023 · US
Mist and vapor eliminating filter, device, system and method of use
US-2023241538-A1 · Aug 3, 2023 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D53/266?
- CPC B01D53/266 is the Cooperative Patent Classification code for “by filtration.”
- How many patents are filed under CPC B01D53/266 (by filtration)?
- Our database includes 60 publications tagged with this CPC code.
- Is patent activity under CPC B01D53/266 growing?
- Publication counts under this code: 7 in 2024 vs 7 in 2025 (latest complete years).