F02M 35/02458
Consisting of multiple layers
Official title: {consisting of multiple layers, e.g. coarse and fine filters; Coatings; Impregnations; Wet or moistened filter elements}
F02M35/02458 (Consisting of multiple layers) appears on 31 US grants and 39 published applications in this corpus.
Search patents in F02M- Granted patents
- 31
- Published applications
- 39
- Assignees
- 26
- Inventors
- 76
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 4 |
| 2015 | 0 | 5 |
| 2016 | 5 | 2 |
| 2017 | 0 | 4 |
| 2018 | 2 | 5 |
| 2019 | 8 | 3 |
| 2020 | 4 | 5 |
| 2021 | 3 | 3 |
| 2022 | 3 | 1 |
| 2023 | 0 | 3 |
| 2024 | 2 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Filter element with flow directing permeability layers12 May 2026US 12,623,166 B2Atmus Filtration Inc.
- Air filter arrangement; assembly; and, methods27 Aug 2024US 12,070,711 B2Donaldson Company, Inc.
- Air filter arrangement; assembly; and, methods9 Apr 2024US 11,951,429 B2Donaldson Company, Inc.
- Super-pleated vehicle air filter27 Dec 2022US 11,536,231 B2K&N Engineering, Inc.
- Air filter system for a utility vehicle6 Sep 2022US 11,434,854 B2Deere & Company
- Air filter arrangement; assembly; and, methods28 Dec 2023US 2023/0415082 A1Donaldson Company, Inc.
- Filter element and filter system28 Dec 2023US 2023/0415085 A1Mann+Hummel GmbH
- Super-pleated vehicle air filter20 Apr 2023US 2023/0123016 A1K&N Engineering, Inc.
- Filter element with flow directing permeability layers6 Oct 2022US 2022/0314144 A1Cummins Filtration Inc.
- Air filter arrangement; assembly; and, methods23 Dec 2021US 2021/0394101 A1Donaldson Company, Inc.
Most cited
By later US patents
- Air filter cartridge and air cleaner assembly141US 8,292,983 B2Donaldson Company, Inc. · 2012
- Air filter cartridge and air cleaner assembly81US 8,709,119 B2Donaldson Company, Inc. · 2014
- Air filter arrangement; assembly; and, methods62US 9,527,023 B2Donaldson Comapny, Inc. · 2016
- Air filter arrangement; assembly; and, methods41US 10,315,144 B2Donaldson Company, Inc. · 2019
- Air filter arrangement; assembly; and, methods32US 10,421,034 B2Donaldson Company, Inc. · 2019