B01D 46/00
Filters or filtering processes specially modified for separating dispersed particles from gases
Official title: Filters or filtering processes specially modified for separating dispersed particles from gases or vapours (filtering elements B01D24/00-B01D35/00; filtering material B01D39/00; their regeneration outside the filters B01D41/00)
B01D46/00 (Filters or filtering processes specially modified for separating dispersed particles from gases) appears on 13,014 US grants and 13,285 published applications in this corpus.
Search patents in B01D- Granted patents
- 13,014
- Published applications
- 13,285
- Assignees
- 4,568
- Inventors
- 22,868
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 93 | 0 |
| 1977 | 91 | 0 |
| 1978 | 91 | 0 |
| 1979 | 78 | 0 |
| 1980 | 110 | 0 |
| 1981 | 182 | 0 |
| 1982 | 116 | 0 |
| 1983 | 87 | 0 |
| 1984 | 100 | 0 |
| 1985 | 114 | 0 |
| 1986 | 92 | 0 |
| 1987 | 113 | 0 |
| 1988 | 110 | 0 |
| 1989 | 121 | 0 |
| 1990 | 96 | 0 |
| 1991 | 75 | 0 |
| 1992 | 108 | 0 |
| 1993 | 136 | 0 |
| 1994 | 118 | 0 |
| 1995 | 136 | 0 |
| 1996 | 147 | 0 |
| 1997 | 167 | 0 |
| 1998 | 236 | 0 |
| 1999 | 193 | 0 |
| 2000 | 199 | 0 |
| 2001 | 216 | 52 |
| 2002 | 200 | 190 |
| 2003 | 194 | 241 |
| 2004 | 215 | 318 |
| 2005 | 167 | 310 |
| 2006 | 179 | 347 |
| 2007 | 162 | 412 |
| 2008 | 202 | 406 |
| 2009 | 233 | 447 |
| 2010 | 263 | 472 |
| 2011 | 358 | 405 |
| 2012 | 370 | 427 |
| 2013 | 364 | 424 |
| 2014 | 359 | 535 |
| 2015 | 398 | 617 |
| 2016 | 420 | 571 |
| 2017 | 469 | 745 |
| 2018 | 477 | 708 |
| 2019 | 647 | 742 |
| 2020 | 697 | 803 |
| 2021 | 588 | 901 |
| 2022 | 635 | 876 |
| 2023 | 587 | 752 |
| 2024 | 611 | 659 |
| 2025 | 527 | 516 |
| 2026 | 367 | 409 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 46/24Particle separators4,411
- B01D 46/10Particle separators3,558
- B01D 46/0002Casings3,549
- B01D 46/52Particle separators2,917
- B01D 46/42Auxiliary equipment or operation thereof2,915
- B01D 46/0027Filters or filtering processes specially modified for separating dispersed particles from gases2,219
- B01D 46/56Filters or filtering processes specially modified for separating dispersed particles from gases2,163
- B01D 46/66Regeneration of the filtering material or filter elements inside the filter1,822
All 20 subgroupsShow fewer
- B01D 46/0084Provided with safety means1,457
- B01D 46/0039Filters or filtering processes specially modified for separating dispersed particles from gases1,150
- B01D 46/02Particle separators1,122
- B01D 46/0001Making filtering elements1,051
- B01D 46/88Replacing filter elements366
- B01D 46/54Particle separators355
- B01D 46/30Particle separators334
- B01D 46/0052Filters or filtering processes specially modified for separating dispersed particles from gases191
- B01D 46/90Devices for taking out of action one or more units of multi-unit141
- B01D 46/18Particle separators113
- B01D 46/40Particle separators65
- B01D 46/28Particle separators13
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Most cited
By later US patents
- Inline filter apparatus526US 5,820,646 ADonaldson Company, Inc. · 1998
- Filter arrangement; sealing system; and methods402US 6,190,432 B1Donaldson Company, Inc. · 2001
- Filter element incorporating a handle member390US 6,235,195 B1Donaldson Company, Inc. · 2001
- Air filtration arrangements having fluted media constructions and methods381US 6,673,136 B2Donaldson Company, Inc. · 2004
- Air filtration system with filter efficiency management373US 6,391,102 B1Stackhouse, Inc. · 2002