B01D 2279/30
Filters adapted for separating dispersed particles from gases or vapours specially modified
Official title: for treatment of exhaust gases from IC Engines
B01D2279/30 (Filters adapted for separating dispersed particles from gases or vapours specially modified) appears on 798 US grants and 964 published applications in this corpus.
Search patents in B01D- Granted patents
- 798
- Published applications
- 964
- Assignees
- 250
- Inventors
- 1,758
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 3 | 0 |
| 2000 | 8 | 0 |
| 2001 | 2 | 2 |
| 2002 | 5 | 11 |
| 2003 | 8 | 11 |
| 2004 | 11 | 33 |
| 2005 | 13 | 24 |
| 2006 | 24 | 35 |
| 2007 | 19 | 62 |
| 2008 | 18 | 67 |
| 2009 | 25 | 82 |
| 2010 | 41 | 64 |
| 2011 | 56 | 47 |
| 2012 | 50 | 26 |
| 2013 | 40 | 33 |
| 2014 | 37 | 20 |
| 2015 | 26 | 8 |
| 2016 | 12 | 10 |
| 2017 | 10 | 66 |
| 2018 | 28 | 54 |
| 2019 | 55 | 77 |
| 2020 | 57 | 55 |
| 2021 | 58 | 53 |
| 2022 | 45 | 47 |
| 2023 | 34 | 30 |
| 2024 | 27 | 17 |
| 2025 | 20 | 19 |
| 2026 | 21 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air conditioning and filtration system29 Sep 2026US 12,746,502 B2Work Air Technologies Pty Ltd
- Selective catalytic reduction catalyst for the treatment of an exhaust gas8 Sep 2026US 12,728,409 B2BASF Mobile Emissions Catalysts LLC
- Pollutant capturer and mobilizer8 Sep 2026US 12,729,640 B2
- Mat material, exhaust gas purification device, and method for producing mat material28 Jul 2026US 12,691,659 B2Ibiden Co., Ltd.
- Exhaust gas purification device7 Jul 2026US 12,673,320 B2Cataler Corporation
- Honeycomb structure and honeycomb filter1 Oct 2026US 2026/0295525 A1NGK Insulators, Ltd.
- Coalescing separator insert, coalescing separator, and process for manufacturing a coalescing separator insert17 Sep 2026US 2026/0273445 A1Mann+Hummel GmbH
- Filter and method for manufacturing same10 Sep 2026US 2026/0263982 A1NGK Insulators, Ltd.
- Methods of making honeycomb bodies having inorganic filtration deposits16 Jul 2026US 2026/0200808 A1Corning Incorporated
- Nozzle designs for secondary air injection in exhaust aftertreatment systems with electrical heaters9 Jul 2026US 2026/0194000 A1Corning Incorporated
Most cited
By later US patents
- Filter element, air cleaner, and methods268US 6,348,084 B1Donaldson Company, Inc. · 2002
- Radio frequency process sensing, control, and diagnostics network and system267US 10,118,119 B2CTS Corporation · 2018
- Honeycomb filter and ceramic filter assembly201US 6,669,751 B1Ibiden Co., Ltd. · 2003
- Filter element having a flat and non-flat configuration185US 5,562,825 ANippondenso Co., Ltd. · 1996
- Filter element, air cleaner, and methods163US 6,746,518 B2Donaldson Company, Inc. · 2004