B01D 46/0047
For discharging the filtered gas
Official title: {for discharging the filtered gas}
B01D46/0047 (For discharging the filtered gas) appears on 317 US grants and 451 published applications in this corpus.
Search patents in B01D- Granted patents
- 317
- Published applications
- 451
- Assignees
- 216
- Inventors
- 935
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 0 |
| 2002 | 1 | 1 |
| 2003 | 4 | 6 |
| 2004 | 2 | 2 |
| 2005 | 1 | 3 |
| 2006 | 1 | 4 |
| 2007 | 1 | 6 |
| 2008 | 0 | 1 |
| 2009 | 3 | 0 |
| 2010 | 2 | 4 |
| 2011 | 1 | 2 |
| 2012 | 3 | 1 |
| 2013 | 0 | 2 |
| 2014 | 3 | 7 |
| 2015 | 2 | 9 |
| 2016 | 4 | 6 |
| 2017 | 9 | 30 |
| 2018 | 9 | 17 |
| 2019 | 18 | 20 |
| 2020 | 18 | 26 |
| 2021 | 19 | 45 |
| 2022 | 29 | 88 |
| 2023 | 30 | 55 |
| 2024 | 53 | 44 |
| 2025 | 38 | 36 |
| 2026 | 35 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air filtration apparatus and system for providing patient information6 Oct 2026US 12,752,071 B2ResMed Pty Ltd
- Air-fluid separator6 Oct 2026US 12,753,712 B2Improved Racing Products, LLC
- Air cleaner29 Sep 2026US 12,747,888 B2LG Electronics Inc.
- Air purifier15 Sep 2026US 12,736,443 B2Samsung Electronics Co., Ltd.
- Maskless respiratory, skin, and eye protection device for aerosols and vapors including chemical, biological, radiological, nuclear, and explosive (cbrne) contaminants8 Sep 2026US 12,728,301 B2Patient Knowhow, Inc.
- Separator for a fluid cleaning device3 Sep 2026US 2026/0257161 A1Dyson Technology Limited
- Mobile pcr systems, mobile reverse pcr hoods and related methods27 Aug 2026US 2026/0249283 A1Radeas, LLC
- Biostatic filter assembly for automotive hvac systems20 Aug 2026US 2026/0241319 A1Tesla, Inc.
- Air cleaner20 Aug 2026US 2026/0241320 A1LG Electronics Inc.
- Mobile toxic gas purification device20 Aug 2026US 2026/0241323 A1Hanso Inc.
Most cited
By later US patents
- Pressure side integrated air filter and filtering networks for engines222US 5,472,463 ACummins Engine Company, Inc. · 1995
- Aerosol separator; and method83US 6,290,739 B1Donaldson Company, Inc. · 2001
- Disposable filter with interchangeable end elements81US 4,062,781 AWhatman Reeve Angel Limited · 1977
- Adjustable air diffuser and related methods65US 6,554,880 B12003
- Filters for purification of gases63US 4,559,066 AProcess Scientific Innovations Limited · 1985