B01D 45/00
Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal
Official title: Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
B01D45/00 (Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal) appears on 3,895 US grants and 3,558 published applications in this corpus.
Search patents in B01D- Granted patents
- 3,895
- Published applications
- 3,558
- Assignees
- 1,929
- Inventors
- 7,280
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 45 | 0 |
| 1977 | 44 | 0 |
| 1978 | 38 | 0 |
| 1979 | 32 | 0 |
| 1980 | 49 | 0 |
| 1981 | 59 | 0 |
| 1982 | 35 | 0 |
| 1983 | 30 | 0 |
| 1984 | 36 | 0 |
| 1985 | 34 | 0 |
| 1986 | 26 | 0 |
| 1987 | 35 | 0 |
| 1988 | 29 | 0 |
| 1989 | 33 | 0 |
| 1990 | 33 | 0 |
| 1991 | 20 | 0 |
| 1992 | 30 | 0 |
| 1993 | 38 | 0 |
| 1994 | 38 | 0 |
| 1995 | 34 | 0 |
| 1996 | 37 | 0 |
| 1997 | 36 | 0 |
| 1998 | 55 | 0 |
| 1999 | 52 | 0 |
| 2000 | 64 | 0 |
| 2001 | 70 | 9 |
| 2002 | 68 | 69 |
| 2003 | 73 | 78 |
| 2004 | 74 | 92 |
| 2005 | 63 | 109 |
| 2006 | 62 | 84 |
| 2007 | 47 | 103 |
| 2008 | 57 | 98 |
| 2009 | 76 | 116 |
| 2010 | 99 | 127 |
| 2011 | 127 | 114 |
| 2012 | 96 | 128 |
| 2013 | 90 | 123 |
| 2014 | 109 | 147 |
| 2015 | 129 | 171 |
| 2016 | 100 | 172 |
| 2017 | 156 | 178 |
| 2018 | 124 | 216 |
| 2019 | 178 | 254 |
| 2020 | 243 | 226 |
| 2021 | 210 | 200 |
| 2022 | 192 | 197 |
| 2023 | 154 | 167 |
| 2024 | 139 | 154 |
| 2025 | 131 | 133 |
| 2026 | 66 | 93 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B01D 45/12Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal2,639
- B01D 45/04Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal1,495
- B01D 45/02Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal191
- B01D 45/18Cleaning-out devices75
Recent patents
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- Liquid separator device and method of use1 Oct 2026US 2026/0295485 A1Pall Corporation
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Most cited
By later US patents
- Robust system for screening mail for biological agents1,080US 6,887,710 B2MesoSystems Technology, Inc. · 2005
- Vacuum cleaner having a cyclone type dust collecting apparatus333US 6,406,505 B1Samsung Kwangju Electronics Co., Ltd. · 2002
- Air filter cartridge305US 6,966,940 B2Donaldson Company, Inc. · 2005
- Upright vacuum cleaner with cyclonic air flow295US 6,782,585 B1Fantom Technologies Inc. · 2004
- Apparatus and method for separating particles from a cyclonic fluid flow270US 6,251,296 B1G. B. D. Corp. · 2001