Centrifugal field flow fractionation device
US-12478984-B2 · Nov 25, 2025 · US
having annular separation channels
having annular separation channels · 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 | B04B2005/045 |
| Official title | {having annular separation channels} |
| Display label | having annular separation channels |
| Total patents | 51 |
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 | 7 |
| 2018 | 4 |
| 2019 | 6 |
| 2020 | 8 |
| 2021 | 3 |
| 2022 | 6 |
| 2023 | 7 |
| 2024 | 2 |
| 2025 | 3 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Centrifuges And Centrifuge Inserts For Fluid Processing Systems
US-2025144642-A1 · May 8, 2025 · US
Centrifugal fluid separation device
US-12285757-B2 · Apr 29, 2025 · US
Fluid Separation Chambers For Fluid Processing Systems
US-2024424502-A1 · Dec 26, 2024 · US
Centrifuges and centrifuge inserts for fluid processing systems
US-12076731-B2 · Sep 3, 2024 · US
Treatment method, separation method, and filter assembly
US-11819227-B2 · Nov 21, 2023 · US
Field flow fractionation device including mass balancer portion
US-11774412-B2 · Oct 3, 2023 · US
Blood washing and separation system
US-11759795-B2 · Sep 19, 2023 · US
Continuous-Flow Centrifuge Chambers Having A Non-Uniform Radius High-G Wall
US-2023271198-A1 · Aug 31, 2023 · US
Centrifugal field-flow fractionation device including arc-shaped channel member
US-2023201842-A1 · Jun 29, 2023 · US
Centrifugal field flow fractionation device
US-2023037872-A1 · Feb 9, 2023 · US
Centrifugal Fluid Separation Device
US-2023015292-A1 · Jan 19, 2023 · US
Centrifugal fluid separation device
US-11478792-B2 · Oct 25, 2022 · US
Centrifugal field-flow fractionation device having a restricting member to prevent deformation of an intermediate layer
US-11433404-B2 · Sep 6, 2022 · US
Centrifugal field-flow fractionation device
US-11407146-B2 · Aug 9, 2022 · US
Centrifugal field-flow fractionation device
US-11389806-B2 · Jul 19, 2022 · US
Mechanical seal for centrifugal field-flow fractionation device
US-11253873-B2 · Feb 22, 2022 · US
Centrifuge
US-2022031925-A1 · Feb 3, 2022 · US
Centrifugal field-flow fractionation device
US-11192120-B2 · Dec 7, 2021 · US
Centrifuges And Centrifuge Inserts For Fluid Processing Systems
US-2021291200-A1 · Sep 23, 2021 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B04B2005/045?
- CPC B04B2005/045 is the Cooperative Patent Classification code for “having annular separation channels.”
- How many patents are filed under CPC B04B2005/045 (having annular separation channels)?
- Our database includes 51 publications tagged with this CPC code.
- Is patent activity under CPC B04B2005/045 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).