Multistage Stage Separation Vortex Flow Air Filter
US-2025223937-A1 · Jul 10, 2025 · US
arranged concentrically or coaxially
arranged concentrically or coaxially · Cooperative Patent Classification (CPC)
Engines, pumps, lighting, heating, and mechanical systems.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | F02M35/0214 |
| Official title | {arranged concentrically or coaxially} |
| Display label | arranged concentrically or coaxially |
| Total patents | 39 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly growing.
| Year | Patents |
|---|---|
| 2015 | 2 |
| 2016 | 5 |
| 2017 | 4 |
| 2018 | 1 |
| 2019 | 6 |
| 2020 | 2 |
| 2021 | 1 |
| 2022 | 5 |
| 2023 | 4 |
| 2024 | 4 |
| 2025 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Cyclonic air filter assembly for an engine
US-2025153081-A1 · May 15, 2025 · US
Cyclonic air filter assembly for an engine
US-12251655-B2 · Mar 18, 2025 · US
Filter elements, air cleaner assemblies, and methods of use and assembly
US-2025065255-A1 · Feb 27, 2025 · US
Filter system having a primary and a secondary filter element and primary filter element for such a filter system
US-12208353-B2 · Jan 28, 2025 · US
Filter system having a primary and a secondary filter element and secondary filter element for such a filter system
US-12134061-B2 · Nov 5, 2024 · US
Filter elements, air cleaner assemblies, and methods of use and assembly
US-12109524-B2 · Oct 8, 2024 · US
Filter system
US-12064722-B2 · Aug 20, 2024 · US
Filter system comprising a resonator
US-2024075418-A1 · Mar 7, 2024 · US
Cyclonic air filter assembly for an engine
US-2023364540-A1 · Nov 16, 2023 · US
Cyclonic air filter assembly for an engine
US-11712649-B2 · Aug 1, 2023 · US
Filter system
US-2023130601-A1 · Apr 27, 2023 · US
Filter elements, air cleaner assemblies, and methods of use and assembly
US-2023001341-A1 · Jan 5, 2023 · US
Filter elements, air cleaner assemblies, and methods of use and assembly
US-11426691-B2 · Aug 30, 2022 · US
Cyclonic air filter assembly for an engine
US-2022176286-A1 · Jun 9, 2022 · US
Filter system having a primary and a secondary filter element and secondary filter element for such a filter system
US-2022118397-A1 · Apr 21, 2022 · US
Filter system having a primary and a secondary filter element and primary filter element for such a filter system
US-2022118398-A1 · Apr 21, 2022 · US
Cyclonic air filter assembly for an engine
US-11260328-B2 · Mar 1, 2022 · US
Multi-modal multi-media air filtration system
US-11136948-B2 · Oct 5, 2021 · US
Multi-modal multi-media air filtration system
US-2020291907-A1 · Sep 17, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02M35/0214?
- CPC F02M35/0214 is the Cooperative Patent Classification code for “arranged concentrically or coaxially.”
- How many patents are filed under CPC F02M35/0214 (arranged concentrically or coaxially)?
- Our database includes 39 publications tagged with this CPC code.
- Is patent activity under CPC F02M35/0214 growing?
- Publication counts under this code: 4 in 2024 vs 5 in 2025 (latest complete years).