F02M 35/02
Air cleaners
F02M35/02 (Air cleaners) appears on 2,493 US grants and 2,209 published applications in this corpus.
Search patents in F02M- Granted patents
- 2,493
- Published applications
- 2,209
- Assignees
- 577
- Inventors
- 4,120
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 10 | 0 |
| 1978 | 12 | 0 |
| 1979 | 9 | 0 |
| 1980 | 23 | 0 |
| 1981 | 22 | 0 |
| 1982 | 19 | 0 |
| 1983 | 17 | 0 |
| 1984 | 18 | 0 |
| 1985 | 16 | 0 |
| 1986 | 11 | 0 |
| 1987 | 22 | 0 |
| 1988 | 24 | 0 |
| 1989 | 19 | 0 |
| 1990 | 12 | 0 |
| 1991 | 22 | 0 |
| 1992 | 26 | 0 |
| 1993 | 13 | 0 |
| 1994 | 21 | 0 |
| 1995 | 20 | 0 |
| 1996 | 35 | 0 |
| 1997 | 24 | 0 |
| 1998 | 39 | 0 |
| 1999 | 47 | 0 |
| 2000 | 33 | 0 |
| 2001 | 51 | 19 |
| 2002 | 42 | 49 |
| 2003 | 43 | 48 |
| 2004 | 56 | 68 |
| 2005 | 44 | 82 |
| 2006 | 54 | 83 |
| 2007 | 63 | 78 |
| 2008 | 56 | 74 |
| 2009 | 44 | 84 |
| 2010 | 58 | 87 |
| 2011 | 56 | 63 |
| 2012 | 89 | 64 |
| 2013 | 65 | 77 |
| 2014 | 84 | 116 |
| 2015 | 88 | 149 |
| 2016 | 112 | 138 |
| 2017 | 101 | 141 |
| 2018 | 104 | 127 |
| 2019 | 151 | 117 |
| 2020 | 118 | 133 |
| 2021 | 115 | 116 |
| 2022 | 132 | 91 |
| 2023 | 88 | 74 |
| 2024 | 77 | 52 |
| 2025 | 50 | 49 |
| 2026 | 29 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02M 35/024Using filters1,327
- F02M 35/0201Housings675
- F02M 35/04Specially arranged with respect to engine , to intake system or specially541
- F02M 35/08With means for removing dust, particles or liquids from cleaners430
- F02M 35/022Acting by gravity, by centrifugal, or by other inertial forces229
- F02M 35/0212Multiple cleaners193
- F02M 35/0218Acting by absorption or adsorption73
- F02M 35/0217Acting by electric discharge15
All 9 subgroupsShow fewer
Recent patents
- Air filtration assembly6 Oct 2026US 12,752,230 B2Ufi Innovation Center S.R.L.
- Filter media, filter media packs, and filter elements29 Sep 2026US 12,746,500 B2Donaldson Company, Inc.
- Throttle controlled intake system8 Sep 2026US 12,729,656 B2K&N Engineering, Inc.
- Air purifier8 Sep 2026US 12,729,867 B2Shenzhen Chenbei Technology Co., Ltd.
- Throttle body spacer11 Aug 2026US 12,704,102 B2K&N Engineering, Inc.
- Apparatus and system for an air intake system of a power source1 Oct 2026US 2026/0298183 A1
- Active precleaner system and methods of use24 Sep 2026US 2026/0284565 A1Donaldson Company, Inc.
- Variable air funnel apparatus17 Sep 2026US 2026/0275945 A1Honda Motor Co., Ltd.
- Air Purifier27 Aug 2026US 2026/0251347 A1Shenzhen Chenbei Technology Co., Ltd.
- Protuberant compressible filter seal design utilizing undercuts13 Aug 2026US 2026/0233138 A1Atmus Filtration Inc.
Most cited
By later US patents
- Air cleaner having sealing arrangement between media arrangement and housing342US 6,179,890 B2Donaldson Company, Inc. · 2001
- Integrated resonator and filter apparatus295US 5,792,247 ADonaldson Company, Inc. · 1998
- Air filter element with radial seal sealing gasket260US 5,484,466 ABaldwin Filters, Inc. · 1996
- Cylindrical air filter with radially directed seal258US 5,547,480 ADonaldson Company, Inc. · 1996
- Filtration arrangement and method242US 5,082,476 ADonaldson Company, Inc. · 1992