B01D 46/0052
Filters or filtering processes specially modified for separating dispersed particles from gases
Official title: {with filtering elements moving during filtering operation (B01D46/22, B01D46/32 take precedence)}
B01D46/0052 (Filters or filtering processes specially modified for separating dispersed particles from gases) appears on 191 US grants and 198 published applications in this corpus.
Search patents in B01D- Granted patents
- 191
- Published applications
- 198
- Assignees
- 123
- Inventors
- 429
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 3 | 4 |
| 2003 | 9 | 3 |
| 2004 | 1 | 5 |
| 2005 | 6 | 2 |
| 2006 | 4 | 4 |
| 2007 | 3 | 4 |
| 2008 | 1 | 6 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 3 | 2 |
| 2012 | 0 | 3 |
| 2013 | 3 | 2 |
| 2014 | 3 | 5 |
| 2015 | 4 | 5 |
| 2016 | 3 | 6 |
| 2017 | 9 | 11 |
| 2018 | 7 | 22 |
| 2019 | 9 | 24 |
| 2020 | 18 | 24 |
| 2021 | 12 | 18 |
| 2022 | 18 | 14 |
| 2023 | 8 | 11 |
| 2024 | 23 | 12 |
| 2025 | 6 | 5 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Separator for a multi-phase flow11 Aug 2026US 12,702,944 B2Innsep AS
- Mist collector and machine tool4 Aug 2026US 12,697,573 B2Dmg Mori Co., Ltd.
- Filter frame assembly for filter media, filtration system, and method of use thereof7 Jul 2026US 12,673,287 B23M Innovative Properties Company
- Filter capable of automatically cutting off gas flow19 May 2026US 12,629,619 B2China University of Petroleum-Beijing
- Mist collector and machine tool5 May 2026US 12,617,053 B2Dmg Mori Co., Ltd.
- Axial flow centrifugal separator18 Jun 2026US 2026/0166459 A1Cummins Filtration IP, Inc.
- Radial flow mid-pressure water separation for environmental control system26 Feb 2026US 2026/0054206 A1Hamilton Sundstrand Corporation
- Fluid decontamination apparatus25 Sep 2025US 2025/0296853 A1Pontic Technology, LLC
- Air/particle separation device comprising a rotary filter made of cellular material10 Jul 2025US 2025/0222381 A1Airbus SAS
- Waste metal powder passivation22 May 2025US 2025/0162037 A1Divergent Technologies, Inc.
Most cited
By later US patents
- Material manipulation in three-dimensional printing149US 10,449,696 B2Velo3D, Inc. · 2019
- Centrifugal filtration device93US 6,517,612 B1Gore Enterprise Holdings, Inc. · 2003
- Air/oil coalescer with centrifugally assisted drainage78US 6,139,595 AFleetguard, Inc. · 2000
- Air/oil coalescer with an improved centrifugally assisted drainage71US 6,640,792 B2Commins Engine Company, Inc. · 2003
- Flash-pyrolysis in a cyclone60US 7,202,389 B1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO · 2007