B01D 46/0097
Special means for preventing bypass around the filter, i.e. in addition to
Official title: {Special means for preventing bypass around the filter, i.e. in addition to usual seals}
B01D46/0097 (Special means for preventing bypass around the filter, i.e. in addition to) appears on 42 US grants and 46 published applications in this corpus.
Search patents in B01D- Granted patents
- 42
- Published applications
- 46
- Assignees
- 30
- Inventors
- 77
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 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 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 3 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 2 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 4 |
| 2017 | 1 | 5 |
| 2018 | 2 | 7 |
| 2019 | 3 | 2 |
| 2020 | 7 | 7 |
| 2021 | 3 | 3 |
| 2022 | 4 | 6 |
| 2023 | 2 | 1 |
| 2024 | 4 | 1 |
| 2025 | 0 | 0 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Taking up system and process with a filter unit for the receiving of gas from a medical apparatus21 Jul 2026US 12,685,836 B2Drägerwerk AG & Co. KGaA
- Air cleaner frame10 Feb 2026US 12,544,701 B2
- Air filter10 Feb 2026US 12,544,703 B2Nippon Muki Co., Ltd.
- Filter element and filter system6 Jan 2026US 12,515,157 B2Mann+Hummel GmbH
- HVAC home air filter28 May 2024US 11,992,798 B2K&N Engineering, Inc.
- Air filter6 Aug 2026US 2026/0225021 A1Nippon Muki Co., Ltd.
- Taking up system and process with a filter unit for the receiving of gas from a medical apparatus22 Feb 2024US 2024/0058562 A1Drägerwerk AG & Co. KGaA
- Filter element and filter system29 Jun 2023US 2023/0201750 A1Mann+Hummel GmbH
- Air filter22 Dec 2022US 2022/0401871 A1Nippon Muki Co., Ltd.
- Hvac home air filter24 Nov 2022US 2022/0370943 A1K&N Engineering, Inc.
Most cited
By later US patents
- Filtration device62US 5,302,354 APall Corporation · 1994
- Fluid purification system56US 4,083,780 AEnvirogenics Systems Company · 1978
- Filter apparatus for a surface cleaning apparatus32US 11,198,085 B2Omachron Intellectual Property Inc. · 2021
- Method of preventing air bypass in a filter bank and a filter assembly20US 6,916,352 B2B.G.E. Service & Supply Ltd. · 2005
- Device for separating a fluid from a gas stream18US 6,858,051 B2Robert Bosch GmbH · 2005