B01D 46/72
With backwash arms, shoes or nozzles
Official title: with backwash arms, shoes or nozzles
B01D46/72 (With backwash arms, shoes or nozzles) appears on 47 US grants and 49 published applications in this corpus.
Search patents in B01D- Granted patents
- 47
- Published applications
- 49
- Assignees
- 47
- Inventors
- 137
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 1 |
| 2011 | 4 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 2 | 3 |
| 2015 | 2 | 4 |
| 2016 | 2 | 0 |
| 2017 | 3 | 3 |
| 2018 | 0 | 1 |
| 2019 | 3 | 5 |
| 2020 | 2 | 5 |
| 2021 | 4 | 4 |
| 2022 | 3 | 1 |
| 2023 | 3 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Filter cleaning system for use with an external mounted filter assembly including timer activated functionality25 Nov 2025US 12,478,912 B2Simmons Holding Company, LLC.
- Filter device for the filtration of gases contaminated with particles13 Feb 2024US 11,896,919 B2Hydac Fluidcarecenter GmbH
- Back-blowing unblocking device for dustproof screen of dryer, dustproof equipment, and dryer26 Dec 2023US 11,852,410 B2Jingjin Equipment Inc.
- Dust collecting treatment apparatus1 Aug 2023US 11,712,780 B2Disco Corporation
- Filter cartridge comprising a flow guiding device protruding from a filter element, filter system and method for cleaning a filter cartridge17 Jan 2023US 11,554,340 B2Camfil Apc GmbH
- Method for Purifying Dust-containing Gas with Positive Pressure26 Feb 2026US 2026/0054209 A1Suzhou University of Science and Technology
- Filter devices for additive manufacturing apparatuses18 Sep 2025US 2025/0288935 A1Concept Laser GmbH
- Filter system with backflush27 Mar 2025US 2025/0099884 A1Indufil B.V.
- Clothing treatment device23 Jan 2025US 2025/0027263 A1Nanjing Roborock Innovation Technology Co., Ltd.
- Filter cleaning system for use with an external mounted filter assembly including timer activated functionality8 Aug 2024US 2024/0261717 A1The Newway Company, Inc.
Most cited
By later US patents
- Self-cleaning air filter41US 4,826,512 A1989
- Nozzle arrangements and method for cleaning filter elements31US 8,075,648 B2Donaldson Company, Inc. · 2011
- Fluid flow filtering arrangement29US 4,051,042 A1977
- Continuous flow steam condensate removal device27US 4,745,943 A1988
- Heavy duty air filter reconditioning system20US 4,585,019 A1986