Hydraulic sludge recovery system
US-2025099880-A1 · Mar 27, 2025 · US
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Downward filtration, the container having distribution or collection headers or pervious conduits
Downward filtration, the container having distribution or collection headers or pervious conduits · 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 | B01D24/24 |
| Official title | Downward filtration, the container having distribution or collection headers or pervious conduits |
| Display label | Downward filtration, the container having distribution or collection headers or pervious conduits |
| Total patents | 17 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 4 |
| 2016 | 4 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 2 |
| 2022 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter device
US-11945734-B2 · Apr 2, 2024 · US
Antimicrobial application system with recycle and capture
US-11363830-B2 · Jun 21, 2022 · US
Antimicrobial application system with recycle and capture
US-2020245651-A1 · Aug 6, 2020 · US
Antimicrobial application system with recycle and capture
US-10660352-B2 · May 26, 2020 · US
Antimicrobial application system with recycle and capture
US-2019030464-A1 · Jan 31, 2019 · US
Filter underdrain with internal air scour laterals
US-10143944-B2 · Dec 4, 2018 · US
Application system with recycle and related use of antimicrobial quaternary ammonium compound
US-9894925-B2 · Feb 20, 2018 · US
Filter Underdrain with Internal Air Scour Laterals
US-2017319989-A1 · Nov 9, 2017 · US
Application system with recycle and related use of antimicrobial quaternary ammonium compound
US-2016262439-A1 · Sep 15, 2016 · US
Antimicrobial application system with recycle and capture
US-2016193549-A1 · Jul 7, 2016 · US
Antimicrobial application system with recycle and capture
US-9352983-B2 · May 31, 2016 · US
Application system with recycle and related use of antimicrobial quaternary ammonium compound
US-9345262-B2 · May 24, 2016 · US
Application system with recycle and related use of antimicrobial quaternary ammonium compound
US-9185929-B2 · Nov 17, 2015 · US
Application system with recycle and related use of antimicrobial quaternary ammonium compound
US-2015296858-A1 · Oct 22, 2015 · US
Application system with recycle and related use of antimicrobial quaternary ammonium compound
US-9072315-B2 · Jul 7, 2015 · US
Antimicrobial application system with recycle and capture
US-2015021258-A1 · Jan 22, 2015 · US