B01D 29/073
With wound filtering sheets
Official title: {with wound filtering sheets}
B01D29/073 (With wound filtering sheets) appears on 41 US grants and 28 published applications in this corpus.
Search patents in B01D- Granted patents
- 41
- Published applications
- 28
- Assignees
- 29
- Inventors
- 85
- Latest grant
- 24 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 6 |
| 2005 | 1 | 2 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 2 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 3 | 2 |
| 2012 | 2 | 4 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 3 |
| 2016 | 0 | 0 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 0 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Fluted filtration media, filtration media packs, and filtration elements24 Sep 2024US 12,097,459 B2Donaldson Company, Inc.
- Filter unit2 May 2023US 11,638,887 B2OASE GmbH
- Roll type filter cleaning apparatus7 Nov 2017US 9,808,743 B2Samsung Electronics Co., Ltd.
- Filter with tri-flow path combinations31 Jan 2017US 9,555,346 B2Cummins Filtration IP, Inc.
- Filter structure4 Feb 2014US 8,641,901 B2Wix Filtration Corp LLC
- Filter Layer Structure, Filter Assembly, and Method of Forming a Filter Layer Structure12 Jun 2025US 2025/0186909 A1Qingdao Ecopure Filter Co., Ltd.
- Filter28 Oct 2021US 2021/0331095 A1Masterfilter Limited
- Fluted filtration media, filtration media packs, and filtration elements19 Nov 2020US 2020/0360852 A1Donaldson Company, Inc.
- Centrifuge filters using a layered, replaceable media cartridge13 Aug 2020US 2020/0254463 A1Donaldson Company, Inc.
- Filter unit6 Jun 2019US 2019/0168137 A1Lavaris Technologies GmbH
Most cited
By later US patents
- Fluid filter element and support148US 4,498,989 ANippondenso Co., Ltd. · 1985
- Filter element for filtering fluid and method of producing same108US 4,430,223 ANippondenso Co., Ltd. · 1984
- Helically wound blood filter71US 4,092,246 AAbcor, Inc. · 1978
- Composite oil filter59US 4,751,901 A1988
- Filter coating, winding, finishing and manufacturing system36US 6,887,343 B2Fleetguard, Inc. · 2005