Pressure washer
US-2025073641-A1 · Mar 6, 2025 · US
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General aspects of water treatment
General aspects of water treatment · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C02F2301/00 |
| Official title | General aspects of water treatment |
| Display label | General aspects of water treatment |
| Total patents | 9 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 1 |
| 2017 | 1 |
| 2018 | 2 |
| 2019 | 1 |
| 2020 | 1 |
| 2023 | 1 |
| 2024 | 1 |
| 2025 | 1 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Pressure washer
US-12172128-B2 · Dec 24, 2024 · US
Pressure washer
US-2023076968-A1 · Mar 9, 2023 · US
Fast biofilm formation method for organic filler during treatment of sewage with low C/N ratio
US-10577267-B2 · Mar 3, 2020 · US
Apparatus for relieving surface-layer clogging of denitrification deep-bed filter and method for running the same
US-10239775-B2 · Mar 26, 2019 · US
Fast biofilm formation method for organic filler during treatment of sewage with low c/n ratio
US-2018141843-A1 · May 24, 2018 · US
Apparatus for reliving surface-layer clogging of denitrification deep-bed filter and method for running the same
US-2018099887-A1 · Apr 12, 2018 · US
Functional polymer membrane and method of producing the same
US-9850147-B2 · Dec 26, 2017 · US
Functional polymer membrane and method of producing the same
US-2015259227-A1 · Sep 17, 2015 · US