Multi-stage filtration system
US-2026034484-A1 · Feb 5, 2026 · US
arranged concentrically or coaxially
arranged concentrically or coaxially · 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 | B01D24/008 |
| Official title | {arranged concentrically or coaxially} |
| Display label | arranged concentrically or coaxially |
| Total patents | 30 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is growing.
| Year | Patents |
|---|---|
| 2016 | 2 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 3 |
| 2022 | 2 |
| 2023 | 3 |
| 2024 | 2 |
| 2025 | 4 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Deionization filter assembly with cylinder-in-cylinder design
US-2025387730-A1 · Dec 25, 2025 · US
Multi-stage filtration system for fuel cell hybrid propulsion system
US-12458913-B2 · Nov 4, 2025 · US
Debris filter for a nuclear fuel assembly bottom end part and method of manufacturing such a debris filter
US-12412673-B2 · Sep 9, 2025 · US
Filter disk segments
US-12220657-B2 · Feb 11, 2025 · US
Layered media backwash with internal draft tube
US-2024246011-A1 · Jul 25, 2024 · US
Multi-stage filtration system for fuel cell hybrid propulsion system
US-2024157277-A1 · May 16, 2024 · US
Systems and methods for purifying solvents
US-11786841-B2 · Oct 17, 2023 · US
Liquid filter unit with vertically arranged filters, and method of operating thereof
US-2023182045-A1 · Jun 15, 2023 · US
Method and system for determining liquid levels in sand filters and effective air scouring during backwash
US-2023059255-A1 · Feb 23, 2023 · US
Filter disk segments
US-2022347603-A1 · Nov 3, 2022 · US
Debris filter for a nuclear fuel assembly bottom end part and method of manufacturing such a debris filter
US-2022344065-A1 · Oct 27, 2022 · US
Recirculation filter for an enclosure
US-11183222-B2 · Nov 23, 2021 · US
Cartridge filter using nanofiber composite fiber yarn and method for manufacturing same
US-11103817-B2 · Aug 31, 2021 · US
Systems and Methods for Purifying Solvents
US-2021220754-A1 · Jul 22, 2021 · US
Oil water separator filter cartridge to housing engagement
US-10618821-B2 · Apr 14, 2020 · US
Oil water separator diffuser cap extension to filter cartridge
US-10603610-B2 · Mar 31, 2020 · US
Recirculation filter for an enclosure
US-2020066307-A1 · Feb 27, 2020 · US
Recirculation filter for an electronic enclosure
US-10482928-B2 · Nov 19, 2019 · US
Cartridge filter using nanofiber composite fiber yarn and method for manufacturing same
US-2019001247-A1 · Jan 3, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D24/008?
- CPC B01D24/008 is the Cooperative Patent Classification code for “arranged concentrically or coaxially.”
- How many patents are filed under CPC B01D24/008 (arranged concentrically or coaxially)?
- Our database includes 30 publications tagged with this CPC code.
- Is patent activity under CPC B01D24/008 growing?
- Publication counts under this code: 2 in 2024 vs 4 in 2025 (latest complete years).