B01D 2267/00
Multiple filter elements specially adapted for separating dispersed particles from gases or
Official title: Multiple filter elements specially adapted for separating dispersed particles from gases or vapours
B01D2267/00 (Multiple filter elements specially adapted for separating dispersed particles from gases or) appears on 465 US grants and 497 published applications in this corpus.
Search patents in B01D- Granted patents
- 465
- Published applications
- 497
- Assignees
- 273
- Inventors
- 1,027
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 16 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 20 | 5 |
| 2002 | 12 | 20 |
| 2003 | 18 | 22 |
| 2004 | 17 | 17 |
| 2005 | 12 | 26 |
| 2006 | 18 | 20 |
| 2007 | 8 | 25 |
| 2008 | 15 | 10 |
| 2009 | 12 | 12 |
| 2010 | 6 | 11 |
| 2011 | 12 | 9 |
| 2012 | 7 | 10 |
| 2013 | 7 | 6 |
| 2014 | 12 | 14 |
| 2015 | 5 | 6 |
| 2016 | 11 | 14 |
| 2017 | 20 | 50 |
| 2018 | 16 | 22 |
| 2019 | 23 | 28 |
| 2020 | 28 | 29 |
| 2021 | 31 | 42 |
| 2022 | 16 | 27 |
| 2023 | 26 | 19 |
| 2024 | 24 | 25 |
| 2025 | 11 | 12 |
| 2026 | 9 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vacuum cleaning device4 Aug 2026US 12,697,005 B2Black & Decker Inc.
- Stackable air treatment device14 Jul 2026US 12,678,725 B2Carrier Corporation
- Paint apparatus and filter module31 Mar 2026US 12,589,346 B2Taikisha Ltd.
- Kit for air-filtration assembly24 Mar 2026US 12,582,929 B23M Innovative Properties Company
- Computer farm ventilation system10 Mar 2026US 12,569,792 B1S-M Enterprises, Inc.
Most cited
By later US patents
- Filter arrangement; sealing system; and methods402US 6,190,432 B1Donaldson Company, Inc. · 2001
- Air filter arrangement having first and second filter media dividing a housing and methods343US 6,210,469 B1Donaldson Company, Inc. · 2001
- Air cleaner having sealing arrangement between media arrangement and housing342US 6,179,890 B2Donaldson Company, Inc. · 2001
- Air filter cartridge305US 6,966,940 B2Donaldson Company, Inc. · 2005
- Filter arrangement; sealing system; and methods288US 6,350,291 B1Donaldson Company, Inc. · 2002