B01D 2271/022
Axial sealings
B01D2271/022 (Axial sealings) appears on 437 US grants and 453 published applications in this corpus.
Search patents in B01D- Granted patents
- 437
- Published applications
- 453
- Assignees
- 148
- Inventors
- 715
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 11 | 0 |
| 2000 | 4 | 0 |
| 2001 | 10 | 4 |
| 2002 | 5 | 5 |
| 2003 | 9 | 7 |
| 2004 | 2 | 11 |
| 2005 | 6 | 10 |
| 2006 | 6 | 10 |
| 2007 | 8 | 8 |
| 2008 | 6 | 11 |
| 2009 | 5 | 8 |
| 2010 | 7 | 16 |
| 2011 | 7 | 12 |
| 2012 | 17 | 15 |
| 2013 | 17 | 14 |
| 2014 | 13 | 24 |
| 2015 | 14 | 20 |
| 2016 | 17 | 17 |
| 2017 | 9 | 23 |
| 2018 | 15 | 20 |
| 2019 | 25 | 28 |
| 2020 | 27 | 26 |
| 2021 | 22 | 26 |
| 2022 | 18 | 36 |
| 2023 | 22 | 23 |
| 2024 | 33 | 32 |
| 2025 | 24 | 26 |
| 2026 | 18 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separating device with a separating element29 Sep 2026US 12,746,495 B2Mann+Hummel GmbH
- Filter system, filter mounting mechanism, and filter elements used in and with the filter system and filter mounting mechanism29 Sep 2026US 12,746,498 B2Altair (UK) Limited
- Filter and clamping wedge for a filter8 Sep 2026US 12,728,375 B2Mann+Hummel GmbH
- Air purifier8 Sep 2026US 12,729,867 B2Shenzhen Chenbei Technology Co., Ltd.
- Airbox with debris removal system28 Jul 2026US 12,691,400 B2Caterpillar Inc.
- Filter element for use with dust collector & other applications8 Oct 2026US 2026/0306986 A1Donaldson Company, Inc.
- Air Purifier27 Aug 2026US 2026/0251347 A1Shenzhen Chenbei Technology Co., Ltd.
- Filter system and method for pharmaceutical filling isolators13 Aug 2026US 2026/0233142 A1Vanrx Pharmasystems Inc.
- Filter element for filtering a gaseous fluid6 Aug 2026US 2026/0225022 A1Mann+Hummel GmbH
- Filter device and method for mounting such a filter device25 Jun 2026US 2026/0175153 A1Atlas Copco Airpower N.V.
Most cited
By later US patents
- Air filter cartridge305US 6,966,940 B2Donaldson Company, Inc. · 2005
- Cylindrical air filter with lightweight housing and radially directed seal282US 4,720,292 ADonaldson Company, Inc. · 1988
- Cylindrical air filter with radially directed seal258US 5,547,480 ADonaldson Company, Inc. · 1996
- Filter arrangement and methods250US 6,348,085 B1Donaldson Company, Inc. · 2002
- Reverse flow air filter arrangement and method215US 5,897,676 ADonaldson Company, Inc. · 1999