B01D 46/48
Removing dust other than cleaning filters
Official title: Removing dust other than cleaning filters {, e.g. by using collecting trays}
B01D46/48 (Removing dust other than cleaning filters) appears on 232 US grants and 215 published applications in this corpus.
Search patents in B01D- Granted patents
- 232
- Published applications
- 215
- Assignees
- 171
- Inventors
- 540
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 11 | 2 |
| 2002 | 4 | 4 |
| 2003 | 1 | 4 |
| 2004 | 2 | 3 |
| 2005 | 3 | 2 |
| 2006 | 2 | 4 |
| 2007 | 1 | 1 |
| 2008 | 2 | 2 |
| 2009 | 1 | 9 |
| 2010 | 0 | 8 |
| 2011 | 8 | 8 |
| 2012 | 4 | 6 |
| 2013 | 4 | 3 |
| 2014 | 6 | 2 |
| 2015 | 10 | 5 |
| 2016 | 0 | 7 |
| 2017 | 8 | 13 |
| 2018 | 7 | 10 |
| 2019 | 11 | 13 |
| 2020 | 9 | 15 |
| 2021 | 7 | 24 |
| 2022 | 14 | 19 |
| 2023 | 19 | 12 |
| 2024 | 11 | 18 |
| 2025 | 8 | 10 |
| 2026 | 12 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Indoor unit for air conditioner29 Sep 2026US 12,746,496 B2LG Electronics Inc.
- Indoor unit for air conditioner29 Sep 2026US 12,746,497 B2LG Electronics Inc.
- Dust removal filler, fouling collection pan and gas cleaning device22 Sep 2026US 12,741,245 B2China Petroleum & Chemical Corporation
- Indoor unit for air conditioner25 Aug 2026US 12,714,961 B2LG Electronics Inc.
- Ash collecting system9 Jun 2026US 12,649,121 B2Beijing Zhong Xing Hui Rong NRG Saving Tech Co, Ltd
- Dust removal filler, fouling collection pan and gas cleaning device1 Oct 2026US 2026/0295489 A1China Petroleum & Chemical Corporation
- Active precleaner system and methods of use24 Sep 2026US 2026/0284565 A1Donaldson Company, Inc.
- Workstation for microgravity environments17 Sep 2026US 2026/0274453 A1SATED Space LLC
- Debris collection hopper system25 Jun 2026US 2026/0176056 A1
- Pre-Treatment Dust Removal Filter Bag Dust Collecting Apparatus Based on Inertial Collision and Edge IOT, and Control Method Thereof18 Jun 2026US 2026/0166461 A1EMSOLUTION CO., Ltd.
Most cited
By later US patents
- System for removing contaminant particles from a gas142US 4,537,608 APall Corporation · 1985
- Air cleaner117US 5,575,826 ADonaldson Company, Inc. · 1996
- Safety filter for air cleaner114US 4,135,899 ADonaldson Company, Inc. · 1979
- Air filter assembly for filtering air with particulate matter106US 5,562,746 ADonaldson Company, Inc. · 1996
- Mounting arrangement for an air cleaner101US 5,277,157 ADeere & Company · 1994