B01D 29/213
Having a concertina shape
Official title: {having a concertina shape}
B01D29/213 (Having a concertina shape) appears on 34 US grants and 27 published applications in this corpus.
Search patents in B01D- Granted patents
- 34
- Published applications
- 27
- Assignees
- 23
- Inventors
- 88
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 5 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 2 | 1 |
| 2012 | 2 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 3 | 4 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 1 |
| 2019 | 2 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 5 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Filter module for water dispensing device25 Feb 2025US 12,234,171 B2LG Electronics Inc.
- Support structure for pleated filter media and methods15 Feb 2022US 11,247,161 B2Donaldson Company, Inc.
- Filter element with a luminescent marker19 Nov 2019US 10,478,760 B2Hydac Filtertechnik GmbH
- Support structure for pleated filter media and methods17 Sep 2019US 10,413,854 B2Donaldson Company, Inc.
- Self-supporting folded sheet material, filter elements, and methods30 Oct 2018US 10,112,130 B2Donaldson Company, Inc.
- Filter element with valve device6 Feb 2025US 2025/0041771 A1Mann+Hummel GmbH
- Radial pleats for a filter31 Oct 2024US 2024/0359117 A1Pentair, Inc.
- Filter System with a Filter Element and a Safety Assembly, a Safety Assembly, and a Filter Element9 May 2024US 2024/0149194 A1Mann+Hummel GmbH
- Filter insert for insertion into a filter housing18 Apr 2024US 2024/0123377 A1
- Filter System with a Filter Element and a Safety Assembly, a Safety Assembly, and a Filter Element14 Mar 2024US 2024/0082756 A1Mann+Hummel GmbH
Most cited
By later US patents
- Pleated filter and method and apparatus for fabricating same64US 4,594,162 AAmerican Filtrona Corporation · 1986
- Filter assembly with pleated media V-packs, and methods45US 7,311,747 B2Donaldson Company, Inc. · 2007
- Method and apparatus for forming filter element38US 5,120,296 ANippondenso Co., Ltd. · 1992
- Filter element and fabrication method for the same34US 5,755,963 ANippondenso Co., Ltd. · 1998
- Interchangeable filter apparatus33US 4,251,374 A1981