B01D 2275/00
Filter media structures for filters specially adapted for separating dispersed particles from
Official title: Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
B01D2275/00 (Filter media structures for filters specially adapted for separating dispersed particles from) appears on 1,581 US grants and 1,665 published applications in this corpus.
Search patents in B01D- Granted patents
- 1,581
- Published applications
- 1,665
- Assignees
- 698
- Inventors
- 3,077
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 15 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 6 | 0 |
| 1987 | 12 | 0 |
| 1988 | 8 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 1 | 0 |
| 1992 | 10 | 0 |
| 1993 | 13 | 0 |
| 1994 | 15 | 0 |
| 1995 | 21 | 0 |
| 1996 | 19 | 0 |
| 1997 | 34 | 0 |
| 1998 | 31 | 0 |
| 1999 | 35 | 0 |
| 2000 | 44 | 0 |
| 2001 | 36 | 11 |
| 2002 | 33 | 28 |
| 2003 | 35 | 47 |
| 2004 | 39 | 71 |
| 2005 | 38 | 42 |
| 2006 | 31 | 54 |
| 2007 | 27 | 53 |
| 2008 | 30 | 60 |
| 2009 | 29 | 57 |
| 2010 | 32 | 74 |
| 2011 | 42 | 45 |
| 2012 | 55 | 55 |
| 2013 | 55 | 45 |
| 2014 | 45 | 53 |
| 2015 | 40 | 49 |
| 2016 | 41 | 67 |
| 2017 | 42 | 109 |
| 2018 | 44 | 84 |
| 2019 | 87 | 109 |
| 2020 | 93 | 104 |
| 2021 | 75 | 97 |
| 2022 | 82 | 91 |
| 2023 | 60 | 85 |
| 2024 | 75 | 85 |
| 2025 | 57 | 49 |
| 2026 | 33 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Filter unit with a filter block, a damping layer and a housing, and process of manufacturing such a filter unit6 Oct 2026US 12,752,136 B2Dräger Safety AG & Co. KGaA
- Filtration assembly and system29 Sep 2026US RE51,044 E1Walk Industrial, Inc.
- Method for manufacturing a metallic functional part delimiting a porous filtering medium, using an additive manufacturing method, and obtained functional part25 Aug 2026US 12,714,960 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Anti-microbial filter18 Aug 2026US 12,708,690 B2Acell Industries Limited
- High filtration efficiency particulate filters having bimodal pore size distribution made from beads with open porosity11 Aug 2026US 12,702,946 B2Corning Incorporated
- Automotive air filters with hydrocarbon-absorbing media8 Oct 2026US 2026/0306983 A1
- Stackable solid sorbent layers for gas separation and method of making1 Oct 2026US 2026/0295498 A1Mosaic Materials, Inc.
- Coalescing separator insert, coalescing separator, and process for manufacturing a coalescing separator insert17 Sep 2026US 2026/0273446 A1Mann+Hummel GmbH
- Filter element and filter device3 Sep 2026US 2026/0257162 A1Mann+Hummel GmbH
- Filter element and filter device27 Aug 2026US 2026/0249224 A1Mann+Hummel GmbH
Most cited
By later US patents
- Filter arrangement; sealing system; and methods402US 6,190,432 B1Donaldson Company, Inc. · 2001
- Conical filter341US 5,902,364 ADonaldson Company, Inc. · 1999
- Filter material construction and method335US 5,672,399 ADonaldson Company, Inc. · 1997
- Slanted inline filter319US 5,772,883 ADonaldson Company, Inc. · 1998
- Fluid filtering device309US 4,589,983 ADonaldson Company, Inc. · 1986