F01N 2370/00
Selection of materials for exhaust purification
F01N2370/00 (Selection of materials for exhaust purification) appears on 1,032 US grants and 1,325 published applications in this corpus.
Search patents in F01N- Granted patents
- 1,032
- Published applications
- 1,325
- Assignees
- 306
- Inventors
- 2,267
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 5 | 0 |
| 1991 | 6 | 0 |
| 1992 | 10 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 14 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 6 | 2 |
| 2002 | 4 | 16 |
| 2003 | 4 | 19 |
| 2004 | 14 | 9 |
| 2005 | 9 | 12 |
| 2006 | 8 | 26 |
| 2007 | 5 | 26 |
| 2008 | 3 | 15 |
| 2009 | 22 | 39 |
| 2010 | 17 | 31 |
| 2011 | 14 | 38 |
| 2012 | 24 | 30 |
| 2013 | 28 | 17 |
| 2014 | 23 | 20 |
| 2015 | 25 | 36 |
| 2016 | 23 | 38 |
| 2017 | 36 | 68 |
| 2018 | 44 | 106 |
| 2019 | 64 | 99 |
| 2020 | 72 | 124 |
| 2021 | 104 | 122 |
| 2022 | 98 | 134 |
| 2023 | 101 | 124 |
| 2024 | 70 | 89 |
| 2025 | 73 | 44 |
| 2026 | 35 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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 purification device and method for manufacturing exhaust gas purification device29 Sep 2026US 12,746,533 B2Cataler Corporation
- Catalytic material for treating an exhaust gas produced by a natural gas engine1 Sep 2026US 12,722,145 B2Johnson Matthey Public Limited Company
- 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
- Improved hydrocarbon trap for cold-start hydrocarbon control from internal combustion engines1 Oct 2026US 2026/0295527 A1
- Catalytic materials comprising fe-containing zeolitic material for the treatment of an exhaust gas1 Oct 2026US 2026/0295569 A1
- Composite of manganese-based oxide and zeolite useful as nh3-scr catalyst24 Sep 2026US 2026/0284594 A1
- Catalyst article for treating exhaust gas, its method of manufacture and uses thereof10 Sep 2026US 2026/0264015 A1Johnson Matthey Public Limited Company
Most cited
By later US patents
- Device for removal of contaminants from fluid streams235US 5,750,026 ACorning Incorporated · 1998
- Method and apparatus for treating an engine exhaust gas stream154US 6,171,556 B2Engelhard Corporation · 2001
- Dual converter engine exhaust system for reducing hydrocarbon emissions137US 5,125,231 ACorning Incorporated · 1992
- Catalyzed SCR filter and emission treatment system132US 7,229,597 B2BASFD Catalysts LLC · 2007
- Arrangement for the aftertreatment of exhaust gases112US 5,605,042 ARobert Bosch GmbH · 1997