B01D 2277/20
Inclined, i.e. forming an angle of between 0° and 90°
B01D2277/20 (Inclined, i.e. forming an angle of between 0° and 90°) appears on 77 US grants and 73 published applications in this corpus.
Search patents in B01D- Granted patents
- 77
- Published applications
- 73
- Assignees
- 61
- Inventors
- 207
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 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 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 2 |
| 2005 | 2 | 6 |
| 2006 | 3 | 4 |
| 2007 | 3 | 7 |
| 2008 | 2 | 2 |
| 2009 | 5 | 4 |
| 2010 | 1 | 3 |
| 2011 | 3 | 3 |
| 2012 | 3 | 2 |
| 2013 | 4 | 3 |
| 2014 | 2 | 4 |
| 2015 | 2 | 3 |
| 2016 | 2 | 1 |
| 2017 | 2 | 4 |
| 2018 | 1 | 0 |
| 2019 | 1 | 3 |
| 2020 | 5 | 6 |
| 2021 | 0 | 2 |
| 2022 | 3 | 5 |
| 2023 | 4 | 3 |
| 2024 | 4 | 1 |
| 2025 | 1 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air filter6 Jan 2026US 12,515,156 B2Mann+Hummel GmbH
- Filter element and filter system6 Jan 2026US 12,515,157 B2Mann+Hummel GmbH
- Vehicle air-conditioning apparatus30 Dec 2025US 12,508,880 B2Hanon Systems
- Liquid separator31 Dec 2024US 12,179,136 B2Joma-Polytec GmbH
- Filter for purifying an air stream7 May 2024US 11,975,282 B2Guild Associates, Inc.
- Cooking apparatus ventilation system including oil-smoke collection filter18 Sep 2025US 2025/0288934 A1Samsung Electronics Co., Ltd.
- Separator for a fluid cleaning device13 Feb 2025US 2025/0049279 A1Dyson Technology Limited
- Air Filter1 Feb 2024US 2024/0033667 A1Mann+Hummel GmbH
- Vehicle Air-Conditioning Apparatus19 Oct 2023US 2023/0331071 A1Hanon Systems
- Filter element and filter system29 Jun 2023US 2023/0201750 A1Mann+Hummel GmbH
Most cited
By later US patents
- Air filter arrangement having first and second filter media dividing a housing and methods343US 6,210,469 B1Donaldson Company, Inc. · 2001
- Slanted inline filter319US 5,772,883 ADonaldson Company, Inc. · 1998
- Multistage air cleaner including pulse cleaning system130US 7,090,711 B2Donaldson Company, Inc. · 2006
- Multistage air cleaner including pulse cleaning system120US 6,676,721 B1Donaldson Company, Inc. · 2004
- Multistage air cleaner including pulse cleaning system81US 6,908,494 B2Donaldson Company, Inc. · 2005