Air filter device
US-11478738-B2 · Oct 25, 2022 · US
Materials or structure of filter elements, e.g. foams
Materials or structure of filter elements, e.g. foams · 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 | F02M35/02441 |
| Official title | {Materials or structure of filter elements, e.g. foams} |
| Display label | Materials or structure of filter elements, e.g. foams |
| Total patents | 90 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is declining.
| Year | Patents |
|---|---|
| 2015 | 3 |
| 2016 | 6 |
| 2017 | 6 |
| 2018 | 7 |
| 2019 | 11 |
| 2020 | 11 |
| 2021 | 11 |
| 2022 | 12 |
| 2023 | 16 |
| 2024 | 5 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Vapor capture element for an air intake system of an internal combustion engine
US-2022260044-A1 · Aug 18, 2022 · US
Air box with integrated filter media
US-2022243689-A1 · Aug 4, 2022 · US
Air cleaner housing for a vehicle
US-2022145836-A1 · May 12, 2022 · US
Air box with integrated filter media
US-11306691-B2 · Apr 19, 2022 · US
Cone air filter
US-11179664-B2 · Nov 23, 2021 · US
Air intake system for an engine
US-11060490-B2 · Jul 13, 2021 · US
Filter medium, method for producing same and the filter medium in a filter element
US-2021129060-A1 · May 6, 2021 · US
Secondary Filter Element and Filter Arrangement
US-2021131389-A1 · May 6, 2021 · US
Air cleaner for vehicle
US-2021131388-A1 · May 6, 2021 · US
Air filter and method of use
US-2021121812-A1 · Apr 29, 2021 · US
Filter Muffler for an Exhaust Gas Turbocharger of an Internal Combustion Engine
US-2021071627-A1 · Mar 11, 2021 · US
Air cleaner
US-2021060471-A1 · Mar 4, 2021 · US
High performance density element with angle between inlet flow and outlet flow
US-2021046413-A1 · Feb 18, 2021 · US
Intake filter for vehicle and manufacturing method thereof
US-2021008476-A1 · Jan 14, 2021 · US
Filter media pack with porous wrapper
US-2021001258-A1 · Jan 7, 2021 · US
Air Filter Device
US-2020406180-A1 · Dec 31, 2020 · US
Adapter filter fixing type air cleaner and intake system including the same
US-10865748-B2 · Dec 15, 2020 · US
Filter media pack with porous wrapper
US-10814263-B2 · Oct 27, 2020 · US
Tubular air cleaner for internal combustion engine
US-10753319-B2 · Aug 25, 2020 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC F02M35/02441?
- CPC F02M35/02441 is the Cooperative Patent Classification code for “Materials or structure of filter elements, e.g. foams.”
- How many patents are filed under CPC F02M35/02441 (Materials or structure of filter elements, e.g. foams)?
- Our database includes 90 publications tagged with this CPC code.
- Is patent activity under CPC F02M35/02441 growing?
- Publication counts under this code: 16 in 2023 vs 5 in 2024 (latest complete years).