Method for collecting inert particles in kitchen waste slurry based on venturi-type particle collector
US-2026014568-A1 · Jan 15, 2026 · US
Combinations of filters with settling tanks
Combinations of filters with settling tanks · 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 | B01D36/04 |
| Official title | Combinations of filters with settling tanks |
| Display label | Combinations of filters with settling tanks |
| Total patents | 44 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 6 |
| 2016 | 4 |
| 2017 | 3 |
| 2018 | 4 |
| 2019 | 4 |
| 2020 | 5 |
| 2021 | 5 |
| 2022 | 3 |
| 2023 | 4 |
| 2024 | 2 |
| 2025 | 3 |
| 2026 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Filter for a Fluid Passageway
US-2025161846-A1 · May 22, 2025 · US
Filter for a Fluid Passageway
US-2025161847-A1 · May 22, 2025 · US
Process for separating plant oil from one or more biorefinery process compositions, and related compositions and systems
US-2025066685-A1 · Feb 27, 2025 · US
Disc filter pre-screen dual media disc filter
US-12048890-B2 · Jul 30, 2024 · US
Hydraulic control line filters for subsea high-pressure application
US-11988061-B2 · May 21, 2024 · US
Disc filter pre-screen dual media disc filter
US-2023338880-A1 · Oct 26, 2023 · US
Method and process arrangement for improving a separation and solid product
US-2023279448-A1 · Sep 7, 2023 · US
Hydraulic control line filters for subsea high-pressure application
US-2023265730-A1 · Aug 24, 2023 · US
Purification of saccharides
US-2023085173-A1 · Mar 16, 2023 · US
Water drain mechanism for filter assemblies
US-11333116-B2 · May 17, 2022 · US
Waste liquid treating apparatus
US-11319214-B2 · May 3, 2022 · US
Separation apparatus
US-11229857-B2 · Jan 25, 2022 · US
Waste fluid treatment apparatus
US-11040889-B2 · Jun 22, 2021 · US
Waste liquid treating apparatus
US-11027225-B2 · Jun 8, 2021 · US
Disc filter pre-screen dual media disc filter
US-2021129059-A1 · May 6, 2021 · US
Waste liquid treating apparatus
US-2021024373-A1 · Jan 28, 2021 · US
Disc filter pre-screen dual media disc filter
US-10888807-B2 · Jan 12, 2021 · US
Water drain mechanism for filter assemblies
US-2020347809-A1 · Nov 5, 2020 · US
Waste liquid treating apparatus
US-2020338478-A1 · Oct 29, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D36/04?
- CPC B01D36/04 is the Cooperative Patent Classification code for “Combinations of filters with settling tanks.”
- How many patents are filed under CPC B01D36/04 (Combinations of filters with settling tanks)?
- Our database includes 44 publications tagged with this CPC code.
- Is patent activity under CPC B01D36/04 growing?
- Publication counts under this code: 2 in 2024 vs 3 in 2025 (latest complete years).