Vacuum cleaner
US-2025380844-A1 · Dec 18, 2025 · US
Curved filtering elements, e.g. concave filtering elements
Curved filtering elements, e.g. concave filtering elements · 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 | B01D29/0097 |
| Official title | {Curved filtering elements, e.g. concave filtering elements} |
| Display label | Curved filtering elements, e.g. concave filtering elements |
| Total patents | 42 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 4 |
| 2018 | 4 |
| 2019 | 7 |
| 2020 | 6 |
| 2021 | 5 |
| 2022 | 2 |
| 2023 | 2 |
| 2024 | 1 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vacuum cleaner
US-2025375078-A1 · Dec 11, 2025 · US
Vacuum cleaner
US-2025366683-A1 · Dec 4, 2025 · US
Filtration filter and filtration device
US-12440785-B2 · Oct 14, 2025 · US
Clothes treatment apparatus
US-2025215635-A1 · Jul 3, 2025 · US
Filter system comprising a filter element and secondary element for closing a central tube
US-11890558-B2 · Feb 6, 2024 · US
Debris-filter materials principally for automatic swimming pool cleaners
US-11814868-B2 · Nov 14, 2023 · US
Gas detecting apparatuses with integrated flow regulating components
US-2023226468-A1 · Jul 20, 2023 · US
Branched filter and method of use
US-2022088511-A1 · Mar 24, 2022 · US
Truncated filter capsule
US-11247154-B2 · Feb 15, 2022 · US
Debris-filter materials principally for automatic swimming pool cleaners
US-2021363769-A1 · Nov 25, 2021 · US
Oil, debris separator, filter and muffler structure
US-2021331106-A1 · Oct 28, 2021 · US
Debris-filter materials principally for automatic swimming pool cleaners
US-11111685-B2 · Sep 7, 2021 · US
Method of using a filter media for filtration
US-11066311-B2 · Jul 20, 2021 · US
Pressure control device
US-10907665-B2 · Feb 2, 2021 · US
Filtration filter and filtration device
US-2020346144-A1 · Nov 5, 2020 · US
Debris-filter materials principally for automatic swimming pool cleaners
US-2020308859-A1 · Oct 1, 2020 · US
Pressure control device
US-2020276520-A1 · Sep 3, 2020 · US
Pressure control device
US-2020277974-A1 · Sep 3, 2020 · US
Pressure control device
US-2020276522-A1 · Sep 3, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC B01D29/0097?
- CPC B01D29/0097 is the Cooperative Patent Classification code for “Curved filtering elements, e.g. concave filtering elements.”
- How many patents are filed under CPC B01D29/0097 (Curved filtering elements, e.g. concave filtering elements)?
- Our database includes 42 publications tagged with this CPC code.
- Is patent activity under CPC B01D29/0097 growing?
- Publication counts under this code: 1 in 2024 vs 5 in 2025 (latest complete years).