B01D 46/2414
End caps including additional functions or special forms
Official title: {End caps including additional functions or special forms}
B01D46/2414 (End caps including additional functions or special forms) appears on 675 US grants and 779 published applications in this corpus.
Search patents in B01D- Granted patents
- 675
- Published applications
- 779
- Assignees
- 189
- Inventors
- 1,007
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 8 | 0 |
| 2000 | 7 | 0 |
| 2001 | 8 | 4 |
| 2002 | 15 | 12 |
| 2003 | 8 | 7 |
| 2004 | 6 | 15 |
| 2005 | 8 | 13 |
| 2006 | 10 | 14 |
| 2007 | 12 | 18 |
| 2008 | 12 | 13 |
| 2009 | 9 | 25 |
| 2010 | 7 | 25 |
| 2011 | 16 | 17 |
| 2012 | 27 | 25 |
| 2013 | 28 | 24 |
| 2014 | 30 | 57 |
| 2015 | 22 | 46 |
| 2016 | 40 | 44 |
| 2017 | 25 | 35 |
| 2018 | 31 | 31 |
| 2019 | 43 | 44 |
| 2020 | 44 | 52 |
| 2021 | 35 | 62 |
| 2022 | 41 | 47 |
| 2023 | 36 | 43 |
| 2024 | 50 | 38 |
| 2025 | 38 | 40 |
| 2026 | 14 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Crankcase oil separation device for internal combustion engine6 Oct 2026US 12,752,229 B2Caterpillar Inc.
- Air filtration assembly6 Oct 2026US 12,752,230 B2Ufi Innovation Center S.R.L.
- Filter element for a filter system having a resonator structure, and filter system having a resonator structure29 Sep 2026US 12,746,499 B2Mann+Hummel GmbH
- Fluid filter retention mechanism18 Aug 2026US 12,708,869 B2Caterpillar Inc.
- Filter element, housing for a filter system, and filter system comprising a filter element and a housing21 Jul 2026US 12,685,953 B2Mann+Hummel GmbH
- Filter elements, related filter assembly and filter package10 Sep 2026US 2026/0263981 A1Donaldson Company, Inc.
- Ring filter element assembly including two ring filter elements rotationally aligned relative to each other27 Aug 2026US 2026/0249221 A1Mann+Hummel GmbH
- Filter element and filter device27 Aug 2026US 2026/0249224 A1Mann+Hummel GmbH
- Air filter element27 Aug 2026US 2026/0249225 A1Volvo Truck Corporation
- Filter element and method for manufacturing a filter element20 Aug 2026US 2026/0241317 A1MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd.
Most cited
By later US patents
- Cylindrical air filter with lightweight housing and radially directed seal282US 4,720,292 ADonaldson Company, Inc. · 1988
- 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
- Increased flow capacity filter234US 6,149,700 ANelson Industries, Inc. · 2000
- Open flow filter with safety element214US 6,416,561 B1Nelson Industries, Inc. · 2002