B01D 46/90
Devices for taking out of action one or more units of multi-unit
Official title: Devices for taking out of action one or more units of multi-unit filters, e.g. for regeneration or maintenance
B01D46/90 (Devices for taking out of action one or more units of multi-unit) appears on 141 US grants and 93 published applications in this corpus.
Search patents in B01D- Granted patents
- 141
- Published applications
- 93
- Assignees
- 99
- Inventors
- 256
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 3 | 5 |
| 2005 | 2 | 3 |
| 2006 | 5 | 4 |
| 2007 | 2 | 2 |
| 2008 | 3 | 8 |
| 2009 | 1 | 6 |
| 2010 | 2 | 2 |
| 2011 | 8 | 5 |
| 2012 | 3 | 2 |
| 2013 | 1 | 7 |
| 2014 | 4 | 8 |
| 2015 | 7 | 2 |
| 2016 | 2 | 3 |
| 2017 | 5 | 2 |
| 2018 | 1 | 4 |
| 2019 | 3 | 3 |
| 2020 | 2 | 3 |
| 2021 | 2 | 4 |
| 2022 | 3 | 4 |
| 2023 | 5 | 2 |
| 2024 | 1 | 1 |
| 2025 | 2 | 3 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Arrangement of a de-dusting unit in a vacuuming device and vacuuming device with such an arrangement28 Apr 2026US 12,611,080 B2Hilti Aktiengesellschaft
- Removal of part of a particle collection device7 Apr 2026US 12,594,520 B2EOS GmbH Electro Optical Systems
- Manifold assembly for trap filter systems23 Sep 2025US 12,420,225 B2Intel Corporation
- Filter and method of operating25 Mar 2025US 12,257,542 B2
- Method and device for filtering contaminated air26 Mar 2024US 11,938,438 B2Oerlikon Textile GmbH & Co.KG
- Air filter lift assembly20 Aug 2026US 2026/0242190 A1
- Filter system and method for pharmaceutical filling isolators13 Aug 2026US 2026/0233142 A1Vanrx Pharmasystems Inc.
- Pre-filter arrangements and valves for an industrial dust extractor11 Jun 2026US 2026/0157586 A1Husqvarna AB
- Pre-filter arrangements and valves for an industrial dust extractor11 Jun 2026US 2026/0157587 A1Husqvarna AB
- Pre-filter arrangements and valves for an industrial dust extractor23 Apr 2026US 2026/0108121 A1Husqvarna AB
Most cited
By later US patents
- Filter assembly74US 8,794,263 B2Mtt Technologies Limited · 2014
- Method and apparatus for the cleaning of the surface of filter panels in a fluid passageway55US 4,217,116 A1980
- Dust removing apparatus and dust removing method54US 5,895,521 AJapan Pionics Co., Ltd. · 1999
- Ceramic filter construction and method50US 5,250,094 ADonaldson Company, Inc. · 1993
- Filter pulse-down cartridge cleaning mechanism48US 5,002,594 ARansburg Corporation · 1991