Coupled medium-low temperature flue gas processing apparatus for fly ash washing
US-2024390959-A1 · Nov 28, 2024 · US
Regenerating the washing fluid
Regenerating the washing fluid · 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 | B01D2247/04 |
| Official title | Regenerating the washing fluid |
| Display label | Regenerating the washing fluid |
| Total patents | 89 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 9 |
| 2016 | 8 |
| 2017 | 7 |
| 2018 | 7 |
| 2019 | 4 |
| 2020 | 10 |
| 2021 | 13 |
| 2022 | 12 |
| 2023 | 7 |
| 2024 | 8 |
| 2025 | 4 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Exhaust gas treatment apparatus for ships
US-2022212138-A1 · Jul 7, 2022 · US
Process and apparatus for recovering catalyst from a product stream
US-2021324278-A1 · Oct 21, 2021 · US
Exhaust gas cleaning system and method for cleaning exhaust gas
US-2021308617-A1 · Oct 7, 2021 · US
Use of a fuel oil wash to remove catalyst from a fluidized-bed propane dehydrogenation reactor effluent
US-11117108-B2 · Sep 14, 2021 · US
Reactor systems comprising fluid recycling
US-2021268464-A1 · Sep 2, 2021 · US
Methods and compositions for scrubbing chlorine-containing gases
US-2021252455-A1 · Aug 19, 2021 · US
Device and method for purifying air purification device and method
US-2021231324-A1 · Jul 29, 2021 · US
Reactor systems comprising fluid recycling
US-11059013-B2 · Jul 13, 2021 · US
Integrated process and unit operation for conditioning a soot-containing syngas
US-11021667-B2 · Jun 1, 2021 · US
Use of a fuel oil wash to remove catalyst from a fluidized-bed propane dehydrogenation reactor effluent
US-2021077967-A1 · Mar 18, 2021 · US
Cyclone for air cleaning and filtering module having the same
US-10933364-B2 · Mar 2, 2021 · US
Exhaust gas processing apparatus
US-2021057236-A1 · Feb 25, 2021 · US
Humidity control device and separation device
US-2021053010-A1 · Feb 25, 2021 · US
System and method for producing mold-resistant paper with wet scrubber assembly
US-10913087-B2 · Feb 9, 2021 · US
Integrated process and plant for production of urea and UAS (urea-ammonium sulphate) mixtures
US-10870584-B2 · Dec 22, 2020 · US
Liquid flows in cyclonic particle separation chambers
US-2020330914-A1 · Oct 22, 2020 · US
Integrated process and unit operation for conditioning a soot-containing syngas
US-10793797-B2 · Oct 6, 2020 · US
Flux recovery device, soldering device and method for removing flux
US-10792607-B2 · Oct 6, 2020 · US
Contaminant reducing device
US-10786591-B2 · Sep 29, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D2247/04?
- CPC B01D2247/04 is the Cooperative Patent Classification code for “Regenerating the washing fluid.”
- How many patents are filed under CPC B01D2247/04 (Regenerating the washing fluid)?
- Our database includes 89 publications tagged with this CPC code.
- Is patent activity under CPC B01D2247/04 growing?
- Publication counts under this code: 8 in 2024 vs 4 in 2025 (latest complete years).