Exhaust gas system for an internal combustion engine
US-12492657-B2 · Dec 9, 2025 · US
the injectors being surrounded by guiding tubes
the injectors being surrounded by guiding tubes · 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 | B01F25/211 |
| Official title | {the injectors being surrounded by guiding tubes} |
| Display label | the injectors being surrounded by guiding tubes |
| Total patents | 48 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 7 |
| 2016 | 9 |
| 2017 | 9 |
| 2018 | 5 |
| 2019 | 5 |
| 2020 | 3 |
| 2021 | 2 |
| 2022 | 1 |
| 2023 | 2 |
| 2024 | 3 |
| 2025 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Recycling of gas in confined plunging liquid jet reactor
US-12458936-B1 · Nov 4, 2025 · US
Exhaust gas system for an internal combustion engine
US-2024426233-A1 · Dec 26, 2024 · US
Methods and systems for the generation of stable oil-in-water or water-in-oil emulsion for enhanced oil recovery
US-12145112-B2 · Nov 19, 2024 · US
Device and method for enhancing liquid-liquid emulsification
US-2024058773-A1 · Feb 22, 2024 · US
Slurry storage and stirring device and slurry stirring method
US-11833480-B2 · Dec 5, 2023 · US
Apparatus and arrangement for introducing a gas into a main medium in particular in waste water treatment
US-11673102-B2 · Jun 13, 2023 · US
Methods and systems for the generation of stable oil-in-water or water-in-oil emulsion for enhanced oil recovery
US-2022135868-A1 · May 5, 2022 · US
Slurry storage and stirring device and slurry stirring method
US-2021039058-A1 · Feb 11, 2021 · US
Apparatus and arrangement for introducing a gas into a main medium in particular in waste water treatment
US-2021031153-A1 · Feb 4, 2021 · US
Confined plunging liquid jet reactor with modified downcomer
US-2020330934-A1 · Oct 22, 2020 · US
Methods and devices for performing reactions
US-10745305-B2 · Aug 18, 2020 · US
Method for processing fluorine-containing aqueous solution
US-10562800-B2 · Feb 18, 2020 · US
Processing biomass
US-2019153492-A1 · May 23, 2019 · US
Processing hydrocarbon-containing materials
US-2019143282-A1 · May 16, 2019 · US
Bioprocessing
US-2019093062-A1 · Mar 28, 2019 · US
Processing biomass
US-2019055615-A1 · Feb 21, 2019 · US
Diaphragm pump with improved tank recirculation
US-10173183-B2 · Jan 8, 2019 · US
Processing hydrocarbon-containing materials
US-2018230386-A1 · Aug 16, 2018 · US
Methods and devices for performing reactions
US-2018186669-A1 · Jul 5, 2018 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01F25/211?
- CPC B01F25/211 is the Cooperative Patent Classification code for “the injectors being surrounded by guiding tubes.”
- How many patents are filed under CPC B01F25/211 (the injectors being surrounded by guiding tubes)?
- Our database includes 48 publications tagged with this CPC code.
- Is patent activity under CPC B01F25/211 growing?
- Publication counts under this code: 3 in 2024 vs 2 in 2025 (latest complete years).