B01D 2201/30
Filter housing constructions
B01D2201/30 (Filter housing constructions) appears on 1,670 US grants and 1,923 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,670
- Published applications
- 1,923
- Assignees
- 702
- Inventors
- 2,940
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 10 | 0 |
| 1982 | 5 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 12 | 0 |
| 1988 | 7 | 0 |
| 1989 | 10 | 0 |
| 1990 | 8 | 0 |
| 1991 | 14 | 0 |
| 1992 | 11 | 0 |
| 1993 | 15 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 14 | 0 |
| 1997 | 18 | 0 |
| 1998 | 33 | 0 |
| 1999 | 26 | 0 |
| 2000 | 15 | 0 |
| 2001 | 18 | 11 |
| 2002 | 27 | 37 |
| 2003 | 38 | 71 |
| 2004 | 41 | 55 |
| 2005 | 34 | 47 |
| 2006 | 37 | 52 |
| 2007 | 33 | 48 |
| 2008 | 21 | 44 |
| 2009 | 27 | 54 |
| 2010 | 24 | 53 |
| 2011 | 32 | 33 |
| 2012 | 37 | 44 |
| 2013 | 33 | 61 |
| 2014 | 34 | 68 |
| 2015 | 50 | 65 |
| 2016 | 57 | 67 |
| 2017 | 54 | 82 |
| 2018 | 68 | 101 |
| 2019 | 74 | 93 |
| 2020 | 95 | 150 |
| 2021 | 84 | 135 |
| 2022 | 117 | 159 |
| 2023 | 118 | 108 |
| 2024 | 105 | 120 |
| 2025 | 96 | 89 |
| 2026 | 56 | 76 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 2201/301Details of removable closures, lids, caps, filter headsIndexing code1,514
- B01D 2201/309Housings with transparent partsIndexing code86
- B01D 2201/307Filtering elements contained in an insert body mounted in a filter housingIndexing code80
- B01D 2201/308Use of foils, membranes or other means to protect the filter beforeIndexing code8
Recent patents
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- Filter cartridge and filter having same25 Aug 2026US 12,714,954 B2Solventum Intellectual Properties Company
- Animal watering system8 Oct 2026US 2026/0305570 A1Aborder Products, Inc.
- Filter assemblies and related filter elements8 Oct 2026US 2026/0306974 A1Donaldson Company, Inc.
- Filter Element with Biplanar O-Ring1 Oct 2026US 2026/0295481 A1Parker-Hannifin Corporation
- Filter interconnect utilizing a magnetic repulsion force1 Oct 2026US 2026/0295483 A1KX Technologies LLC
- Axial flow single split filter24 Sep 2026US 2026/0284557 A1Atmus Filtration Inc.
Most cited
By later US patents
- Fluid filter system524US 8,272,516 B2Advanced Filtration Systems Inc. · 2012
- Disposable vacuum filtration apparatus capable of detecting microorganisms and particulates in liquid samples489US 6,913,152 B22005
- Inductively powered lamp assembly370US 6,731,071 B2Access Business Group International LLC · 2004
- Inductively powered lamp assembly317US 6,917,163 B2Access Business Group International LLC · 2005
- Inductively powered lamp assembly315US 6,812,645 B2Access Business Group International LLC · 2004