B01D 46/528
Using wound sheets
Official title: {using wound sheets (B01D46/527 takes precedence)}
B01D46/528 (Using wound sheets) appears on 67 US grants and 82 published applications in this corpus.
Search patents in B01D- Granted patents
- 67
- Published applications
- 82
- Assignees
- 40
- Inventors
- 154
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 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 | 1 |
| 2003 | 1 | 1 |
| 2004 | 0 | 3 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 2 | 8 |
| 2009 | 3 | 2 |
| 2010 | 1 | 3 |
| 2011 | 3 | 3 |
| 2012 | 4 | 7 |
| 2013 | 3 | 8 |
| 2014 | 4 | 1 |
| 2015 | 4 | 3 |
| 2016 | 2 | 2 |
| 2017 | 4 | 9 |
| 2018 | 2 | 3 |
| 2019 | 7 | 5 |
| 2020 | 4 | 1 |
| 2021 | 2 | 6 |
| 2022 | 4 | 4 |
| 2023 | 2 | 3 |
| 2024 | 5 | 4 |
| 2025 | 4 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separation component for a filter element10 Feb 2026US 12,544,704 B2Mann+Hummel GmbH
- Fluid filtration apparatuses, systems, and methods9 Sep 2025US 12,409,397 B2Donaldson Company, Inc.
- Filter cartridge; components thereof; and methods29 Jul 2025US 12,370,486 B2Donaldson Company, Inc.
- Filter element and method of manufacturing a filter element27 May 2025US 12,311,301 B2Donaldson Company, Inc.
- Filter body, filter element, and filter assembly1 Apr 2025US 12,263,439 B2Mann+Hummel GmbH
- Filter element and method of manufacturing a filter element30 Oct 2025US 2025/0332532 A1Donaldson Company, Inc.
- Filter body, filter element, and filter assembly19 Jun 2025US 2025/0196052 A1Mann+Hummel GmbH
- Filter element, cartridge and filter system19 Dec 2024US 2024/0416270 A1MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd.
- Filter elment and method of manufacturing a filter element4 Apr 2024US 2024/0109012 A1Donaldson Company, Inc.
- Filter cartridge; components thereof; and methods7 Mar 2024US 2024/0075421 A1Donaldson Company, Inc.
Most cited
By later US patents
- Composite planar and triangularly pleated filter element307US 4,925,561 ATsuchiya Mfg. Co., Ltd. · 1990
- Seal arrangement for filter element; filter element assembly; and, methods164US 7,396,376 B2Donaldson Company, Inc. · 2008
- Seal, arrangement for filter element; filter element assembly; and, methods54US 8,241,384 B2Donaldson Company, Inc. · 2012
- Seal, arrangement for filter element; filter element assembly; and, methods46US 8,685,128 B2Donaldson Company, Inc. · 2014
- Cross-flow filter media and filter assembly45US 7,588,619 B2Wix Filtration Corp LLC · 2009