B01D 2201/296
Other than having a circular shape
B01D2201/296 (Other than having a circular shape) appears on 57 US grants and 62 published applications in this corpus.
Search patents in B01D- Granted patents
- 57
- Published applications
- 62
- Assignees
- 37
- Inventors
- 116
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 2 | 1 |
| 2009 | 3 | 4 |
| 2010 | 1 | 3 |
| 2011 | 0 | 1 |
| 2012 | 4 | 5 |
| 2013 | 2 | 7 |
| 2014 | 2 | 4 |
| 2015 | 3 | 3 |
| 2016 | 2 | 2 |
| 2017 | 3 | 3 |
| 2018 | 4 | 4 |
| 2019 | 5 | 2 |
| 2020 | 7 | 4 |
| 2021 | 1 | 6 |
| 2022 | 5 | 5 |
| 2023 | 3 | 1 |
| 2024 | 1 | 3 |
| 2025 | 1 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Retrofitting and use of rectangular filters, assembly and method for filtration25 Aug 2026US 12,714,957 B2Filtration Technology Corporation
- Air filter mounting plate24 Feb 2026US 12,558,640 B2Camfil Aktiebolag
- Filter with a replaceable filter element having a locking member24 Jun 2025US 12,337,267 B2ElsäSser Filtertechnik GmbH
- Filtration system with rotating core driving thimble opening and closing water passage28 May 2024US 11,992,790 B2Tianjin Tianchuang Best Pure Environmental Science and Technology Co., Ltd.
- Filter assembly for ice making appliance23 May 2023US 11,654,383 B2Haier US Appliance Solutions, Inc.
- Filter assembly with filter element endcap having integral external rounded polygon shaped sealing surface15 Aug 2024US 2024/0269583 A1
- Retrofitting and use of rectangular filters, assembly and method for filtration14 Mar 2024US 2024/0082761 A1Filtration Technology Corporation
- Air filter mounting plate11 Jan 2024US 2024/0009608 A1Camfil Aktiebolag
- Filter with a filter element2 Feb 2023US 2023/0031982 A1ElsäSser Filtertechnik GmbH
- Filter assembly for ice making appliance26 May 2022US 2022/0161165 A1Haier US Appliance Solutions, Inc.
Most cited
By later US patents
- Filter for the separation of contaminants from gas stream91US 6,936,084 B2Beko Technologies GmbH · 2005
- Filter element with off-axis end cap85US 7,494,017 B2Parker-Hannifin Corporation · 2009
- Quick connect/disconnect oil filter78US 5,300,223 AAllied-Signal Inc. · 1994
- Fluid filter and indicator58US 4,272,368 AParker-Hannifin Corporation · 1981
- Elliptical seal interface for filter assembly57US 8,097,061 B2Cummins Filtration IP, Inc. · 2012