B01D 46/28
Particle separators
Official title: Particle separators, e.g. dust precipitators, using filter brushes
B01D46/28 (Particle separators) appears on 13 US grants and 13 published applications in this corpus.
Search patents in B01D- Granted patents
- 13
- Published applications
- 13
- Assignees
- 16
- Inventors
- 39
- Latest grant
- 5 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 1 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 2 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Particle discharge device, filter assembly, and method5 Mar 2024US 11,918,944 B2Mann+Hummel GmbH
- Wind scavenger13 Aug 2019US 10,378,788 B1
- Separating device comprising a cyclone separating device12 Jan 2016US 9,233,326 B2Hydac Process Technology GmbH
- Air filtration and visual barrier for enclosure with front-to-back airflow23 Jun 2015US 9,066,449 B2Cisco Technology, Inc.
- Air filter4 Mar 2014US 8,663,354 B24Energy Ltd.
- Downdraft plasma gasifier13 Mar 2025US 2025/0084326 A1Reformed Energy, Inc.
- Particle Discharge Device, Filter Assembly, and Method1 Aug 2024US 2024/0252965 A1Mann+Hummel GmbH
- Ambient air purification device12 Oct 2023US 2023/0321580 A1MANN+HUMMEL Life Sciences & Environment Holding Singapore Pte. Ltd.
- Method and system for air filtration9 Jun 2022US 2022/0176281 A1Northwestern University
- Particle Discharge Device, Filter Assembly, and Method30 Sep 2021US 2021/0299601 A1Mann+Hummel GmbH
Most cited
By later US patents
- Filtering method and apparatus42US 4,167,482 A1979
- Arrangement for and a process of filtering a contaminated medium29US 4,219,420 AChemap AG · 1980
- Filtration method and apparatus27US 3,977,847 ABrunswick Corporation · 1976
- Scrubber filter19US 4,787,920 A1988
- Method of and apparatus for filtering a medium15US 4,851,136 ADongbei Power College · 1989