B01D 46/526
In stacked arrangement
Official title: {in stacked arrangement}
B01D46/526 (In stacked arrangement) appears on 157 US grants and 176 published applications in this corpus.
Search patents in B01D- Granted patents
- 157
- Published applications
- 176
- Assignees
- 39
- Inventors
- 225
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 2 | 1 |
| 2008 | 2 | 3 |
| 2009 | 1 | 5 |
| 2010 | 0 | 5 |
| 2011 | 4 | 9 |
| 2012 | 8 | 6 |
| 2013 | 8 | 9 |
| 2014 | 13 | 12 |
| 2015 | 4 | 14 |
| 2016 | 12 | 8 |
| 2017 | 7 | 11 |
| 2018 | 8 | 14 |
| 2019 | 11 | 6 |
| 2020 | 12 | 18 |
| 2021 | 10 | 13 |
| 2022 | 14 | 12 |
| 2023 | 11 | 6 |
| 2024 | 15 | 10 |
| 2025 | 4 | 6 |
| 2026 | 6 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter media, filter media packs, and filter elements29 Sep 2026US 12,746,500 B2Donaldson Company, Inc.
- Sanitary mask sheet21 Jul 2026US 12,685,352 B2Kao Corporation
- Filter element with flow directing permeability layers12 May 2026US 12,623,166 B2Atmus Filtration Inc.
- Filter cartridges; air cleaner assemblies; housings; features; components; and, methods21 Apr 2026US 12,605,661 B2Donaldson Company, Inc.
- Filter element configurations24 Feb 2026US 12,558,639 B2Donaldson Company, Inc.
- Sanitary mask sheet17 Sep 2026US 2026/0272077 A1Kao Corporation
- Filter assemblies and elements utilizing multilayered and wrapped filter media4 Jun 2026US 2026/0151723 A1Atmus Filtration IP Inc.
- Two-stage air cleaner system with side-positioned pre-cleaner and pre-cleaner19 Feb 2026US 2026/0048356 A1Donaldson Company, Inc.
- Filter elements and assemblies26 Jun 2025US 2025/0205624 A1Donaldson Company, Inc.
- Filter cartridges; air cleaner assemblies; housings; features components; and, methods22 May 2025US 2025/0161857 A1Donaldson Company, Inc.
Most cited
By later US patents
- Fluid filtering device309US 4,589,983 ADonaldson Company, Inc. · 1986
- Fluid filtering device255US 4,410,427 ADonaldson Company, Inc. · 1983
- Air filter arrangement; assembly; and, methods203US 7,625,419 B2Donaldson Company, Inc. · 2009
- Air filter arrangement; assembly; and, methods174US 8,034,145 B2Donaldson Company, Inc. · 2011
- Air filter arrangement; assembly; and methods155US 8,277,532 B2Donaldson Company, Inc. · 2012