Automated and self-cleaning gravel pack filter system for water treatment and disposal
US-2025177895-A1 · Jun 5, 2025 · US
with the filter bed stationary during the filtration
with the filter bed stationary during the filtration · 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 | B01D24/02 |
| Official title | with the filter bed stationary during the filtration |
| Display label | with the filter bed stationary during the filtration |
| Total patents | 34 |
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 | 4 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 5 |
| 2019 | 8 |
| 2020 | 7 |
| 2021 | 1 |
| 2023 | 3 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Sand filter LED status light
US-11779863-B2 · Oct 10, 2023 · US
Sand Filter LED Status Light
US-2023090606-A1 · Mar 23, 2023 · US
Sand filter LED status light
US-11541333-B2 · Jan 3, 2023 · US
Synergistic iron and clay-based green environmental media for nutrient removal
US-10947131-B2 · Mar 16, 2021 · US
Iron filings-based green environmental media for nutrient removal and methods of use
US-10787373-B2 · Sep 29, 2020 · US
Sand Filter LED Status Light
US-2020230528-A1 · Jul 23, 2020 · US
Synergistic iron and clay-based green environmental media for nutrient removal
US-2020223715-A1 · Jul 16, 2020 · US
Iron filings-based green environmental media for nutrient removal and methods of use
US-2020223716-A1 · Jul 16, 2020 · US
Water treatment using an iron and clay-based sorption media
US-10696567-B2 · Jun 30, 2020 · US
Oil water separator filter cartridge to housing engagement
US-10618821-B2 · Apr 14, 2020 · US
Oil water separator diffuser cap extension to filter cartridge
US-10603610-B2 · Mar 31, 2020 · US
Water separator and water separating system with integrated water discharge device
US-10458378-B2 · Oct 29, 2019 · US
Water treatment using an iron and clay-based sorption media
US-2019256374-A1 · Aug 22, 2019 · US
Oil deterioration suppressing apparatus
US-10369498-B2 · Aug 6, 2019 · US
Removal of sulfites/histamines from pressurized beverage flow
US-2019203164-A1 · Jul 4, 2019 · US
Infiltration intake system for revetment wall
US-10272367-B2 · Apr 30, 2019 · US
System comprising a pump attached to a tank casing for mixing a fluid
US-10252229-B2 · Apr 9, 2019 · US
Multi-media stratified filtration
US-10189723-B2 · Jan 29, 2019 · US
System comprising a pump attached to a tank casing for mixing a fluid
US-2019001284-A1 · Jan 3, 2019 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D24/02?
- CPC B01D24/02 is the Cooperative Patent Classification code for “with the filter bed stationary during the filtration.”
- How many patents are filed under CPC B01D24/02 (with the filter bed stationary during the filtration)?
- Our database includes 34 publications tagged with this CPC code.
- Is patent activity under CPC B01D24/02 growing?
- Publication counts under this code: 3 in 2023 vs 1 in 2025 (latest complete years).