B01D 46/40
Particle separators
Official title: Particle separators, e.g. dust precipitators, using edge filters, i.e. using contiguous impervious surfaces
B01D46/40 (Particle separators) appears on 65 US grants and 65 published applications in this corpus.
Search patents in B01D- Granted patents
- 65
- Published applications
- 65
- Assignees
- 59
- Inventors
- 167
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 3 | 1 |
| 2006 | 0 | 4 |
| 2007 | 0 | 1 |
| 2008 | 4 | 4 |
| 2009 | 0 | 6 |
| 2010 | 2 | 1 |
| 2011 | 1 | 0 |
| 2012 | 2 | 4 |
| 2013 | 0 | 1 |
| 2014 | 3 | 1 |
| 2015 | 0 | 2 |
| 2016 | 3 | 3 |
| 2017 | 0 | 1 |
| 2018 | 3 | 4 |
| 2019 | 2 | 5 |
| 2020 | 5 | 7 |
| 2021 | 7 | 5 |
| 2022 | 1 | 3 |
| 2023 | 3 | 3 |
| 2024 | 4 | 4 |
| 2025 | 2 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Separating device and use of a separating device13 Jan 2026US 12,523,135 B23M Innovative Properties Company
- Systems and methods for removing particulate material11 Nov 2025US 12,466,643 B1Trans-West, Inc.
- Axial flow centrifugal separator20 May 2025US 12,303,816 B2Cummins Filtration IP, Inc.
- Dust-collecting device for fan blades31 Dec 2024US 12,180,981 B1
- Foldable filter arrangement consisting of a plurality of individual filter elements10 Sep 2024US 12,083,467 B2Carl Freudenberg KG
- Power tool with self-cleaning dust protection filter17 Sep 2026US 2026/0273717 A1C. & E. Fein GmbH
- Axial flow centrifugal separator18 Jun 2026US 2026/0166459 A1Cummins Filtration IP, Inc.
- Thin-walled expanded metal filters21 Nov 2024US 2024/0383433 A1ACS Industries, Inc.
- Axial flow centrifugal separator15 Aug 2024US 2024/0269592 A1Cummins Filtration IP, Inc.
- Apparatus9 May 2024US 2024/0149201 A1Dense Air Limited
Most cited
By later US patents
- Particulate separator for fluid production wells39US 5,553,669 A1996
- Microstructured filter35US 6,846,413 B1Boehringer Ingelheim International GmbH · 2005
- Microstructured filter33US 6,977,042 B22005
- Filtration disc including electric field formation32US 6,391,097 B1Milow Ltd. · 2002
- Microstructured filter32US 7,645,383 B2Boehringer Ingelheim International GmbH · 2010