Shear inducer, system, and method
US-12571270-B2 · Mar 10, 2026 · US
Mixing tubes composed of concentric tubular members
Mixing tubes composed of concentric tubular members · 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 | B01F25/435 |
| Official title | Mixing tubes composed of concentric tubular members |
| Display label | Mixing tubes composed of concentric tubular members |
| Total patents | 33 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 1 |
| 2017 | 1 |
| 2018 | 4 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 4 |
| 2022 | 1 |
| 2023 | 6 |
| 2024 | 4 |
| 2025 | 2 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Exhaust gas system for an internal combustion engine
US-12492657-B2 · Dec 9, 2025 · US
Exhaust gas aftertreatment system
US-12281605-B2 · Apr 22, 2025 · US
Exhaust gas system for an internal combustion engine
US-2024426233-A1 · Dec 26, 2024 · US
Exhaust gas aftertreatment system
US-2024376839-A1 · Nov 14, 2024 · US
Shear inducer, system, and method
US-2024175327-A1 · May 30, 2024 · US
Systems and methods for mixing exhaust gases and reductant in an aftertreatment system
US-11982219-B2 · May 14, 2024 · US
Inline static mixer
US-2023405536-A1 · Dec 21, 2023 · US
Fine bubble generating nozzle
US-2023390713-A1 · Dec 7, 2023 · US
Fine bubble generator
US-11826714-B2 · Nov 28, 2023 · US
Systems and methods for mixing exhaust gases and reductant in an aftertreatment system
US-2023108543-A1 · Apr 6, 2023 · US
Fine bubble generator
US-2023009590-A1 · Jan 12, 2023 · US
Systems and methods for mixing exhaust gases and reductant in an aftertreatment system
US-11542847-B2 · Jan 3, 2023 · US
Mixer assembly for vehicle exhaust system
US-11428140-B1 · Aug 30, 2022 · US
Systems and methods for mixing exhaust gases and reductant in an aftertreatment system
US-2021372313-A1 · Dec 2, 2021 · US
Systems and methods for mixing exhaust gases and reductant in an aftertreatment system
US-11136910-B2 · Oct 5, 2021 · US
Mixer box, a use thereof and a method for mixing
US-11047284-B2 · Jun 29, 2021 · US
Diesel exhaust fluid mixing
US-10954841-B2 · Mar 23, 2021 · US
Mixing device
US-2020398234-A1 · Dec 24, 2020 · US
Systems and methods for mixing exhaust gases and reductant in an aftertreatment system
US-2020123955-A1 · Apr 23, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01F25/435?
- CPC B01F25/435 is the Cooperative Patent Classification code for “Mixing tubes composed of concentric tubular members.”
- How many patents are filed under CPC B01F25/435 (Mixing tubes composed of concentric tubular members)?
- Our database includes 33 publications tagged with this CPC code.
- Is patent activity under CPC B01F25/435 growing?
- Publication counts under this code: 4 in 2024 vs 2 in 2025 (latest complete years).