B01D 2275/205
Rectangular shape
B01D2275/205 (Rectangular shape) appears on 57 US grants and 94 published applications in this corpus.
Search patents in B01D- Granted patents
- 57
- Published applications
- 94
- Assignees
- 48
- Inventors
- 213
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 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 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 0 |
| 2009 | 1 | 3 |
| 2010 | 2 | 2 |
| 2011 | 0 | 3 |
| 2012 | 2 | 0 |
| 2013 | 4 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 4 |
| 2016 | 4 | 2 |
| 2017 | 0 | 6 |
| 2018 | 2 | 7 |
| 2019 | 2 | 8 |
| 2020 | 5 | 3 |
| 2021 | 6 | 8 |
| 2022 | 3 | 11 |
| 2023 | 4 | 3 |
| 2024 | 7 | 18 |
| 2025 | 6 | 5 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for dehumidifying air2 Jun 2026US 12,643,069 B2Wilson Innovations & Consulting, LLC
- Kit for air-filtration assembly24 Mar 2026US 12,582,929 B23M Innovative Properties Company
- Outdoor air purifier including at least one filter element17 Mar 2026US 12,576,355 B2Mann+Hummel GmbH
- Air filtration cassette, an air filter and a filter arrangement24 Feb 2026US 12,558,646 B2Camfil Aktiebolag
- Filter apparatus, vehicle, use and method20 Jan 2026US 12,528,039 B2Mann+Hummel GmbH
- Frame unit9 Jul 2026US 2026/0192226 A1
- Filters and filter assemblies with canted openings, collectors and methods of use26 Mar 2026US 2026/0084083 A1Donaldson Company, Inc.
- Cleanable filter medium5 Mar 2026US 2026/0061352 A1DelStar Technologies, Inc.
- Cooking apparatus ventilation system including oil-smoke collection filter18 Sep 2025US 2025/0288934 A1Samsung Electronics Co., Ltd.
- Tubular filter arrangement, a filter element and use of such tubular filter arrangement3 Jul 2025US 2025/0214017 A1Nederman Holding AB
Most cited
By later US patents
- Air filter arrangement; assembly and methods103US 8,357,219 B2Donaldson Company, Inc. · 2013
- Air filter arrangement; assembly; and, methods82US 8,840,699 B2Donaldson Company, Inc. · 2014
- Air filter arrangement; assembly; and, methods61US 9,399,972 B2Donaldson Company, Inc. · 2016
- Dual element air filter48US 4,129,429 AWix Corporation · 1978
- Air filter arrangement; assembly; and methods29US 10,427,083 B2Donaldson Company, Inc. · 2019