B01D 53/9477
With catalysts positioned on separate bricks
Official title: {with catalysts positioned on separate bricks, e.g. exhaust systems}
B01D53/9477 (With catalysts positioned on separate bricks) appears on 947 US grants and 1,157 published applications in this corpus.
Search patents in B01D- Granted patents
- 947
- Published applications
- 1,157
- Assignees
- 241
- Inventors
- 1,854
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 6 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 2 |
| 2002 | 5 | 6 |
| 2003 | 1 | 6 |
| 2004 | 6 | 5 |
| 2005 | 6 | 11 |
| 2006 | 3 | 9 |
| 2007 | 8 | 15 |
| 2008 | 4 | 26 |
| 2009 | 10 | 53 |
| 2010 | 23 | 80 |
| 2011 | 25 | 62 |
| 2012 | 55 | 46 |
| 2013 | 66 | 67 |
| 2014 | 52 | 57 |
| 2015 | 71 | 100 |
| 2016 | 70 | 72 |
| 2017 | 80 | 89 |
| 2018 | 63 | 84 |
| 2019 | 80 | 64 |
| 2020 | 55 | 53 |
| 2021 | 60 | 49 |
| 2022 | 45 | 64 |
| 2023 | 41 | 47 |
| 2024 | 42 | 45 |
| 2025 | 38 | 21 |
| 2026 | 15 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Layered tri-metallic catalytic article and method of manufacturing the catalytic article29 Sep 2026US 12,746,532 B2BASF Mobile Emissions Catalysts LLC
- Exhaust gas aftertreatment system with two SCR catalysts29 Sep 2026US 12,747,686 B1FEV Group GmbH
- Selective catalytic reduction catalyst for the treatment of an exhaust gas8 Sep 2026US 12,728,409 B2BASF Mobile Emissions Catalysts LLC
- Catalyzed soot filter with reduced ammonia oxidation1 Sep 2026US 12,723,531 B2BASF Mobile Emissions Catalysts LLC
- Composite, zoned oxidation catalyst for a compression ignition internal combustion engine25 Aug 2026US 12,714,990 B2Johnson Matthey Public Limited Company
- Exhaust purification device8 Oct 2026US 2026/0307009 A1Mazda Motor Corporation
- An exhaust gas treatment system for treating an exhaust gas stream exiting a gasoline engine1 Oct 2026US 2026/0295528 A1
- Exhaust gas aftertreatment system with two scr catalysts1 Oct 2026US 2026/0298123 A1FEV Group GmbH
- Composite of manganese-based oxide and zeolite useful as nh3-scr catalyst24 Sep 2026US 2026/0284594 A1
- Exhaust aftertreatment system24 Sep 2026US 2026/0286878 A1Donaldson Company, Inc.
Most cited
By later US patents
- Catalyzed SCR filter and emission treatment system132US 7,229,597 B2BASFD Catalysts LLC · 2007
- Exhaust gas treatment system120US 6,087,298 AEngelhard Corporation · 2000
- Method for converting exhaust gases from a diesel engine using nitrogen oxide absorbent96US 6,182,443 B2Ford Global Technologies, LLC · 2001
- Exhaust gas purification device for an engine92US 5,746,052 AToyota Jidosha Kabushiki Kaisha · 1998
- Catalysts for the reduction of ammonia emission from rich-burn exhaust92US 8,101,146 B2Johnson Matthey Public Limited Company · 2012