F01N 3/24
Characterised by constructional aspects of converting apparatus
Official title: characterised by constructional aspects of converting apparatus (filtering in combination with catalytic reactors F01N3/035)
F01N3/24 (Characterised by constructional aspects of converting apparatus) appears on 6,755 US grants and 6,178 published applications in this corpus.
Search patents in F01N- Granted patents
- 6,755
- Published applications
- 6,178
- Assignees
- 1,421
- Inventors
- 11,226
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 123 | 0 |
| 1977 | 62 | 0 |
| 1978 | 78 | 0 |
| 1979 | 45 | 0 |
| 1980 | 49 | 0 |
| 1981 | 47 | 0 |
| 1982 | 48 | 0 |
| 1983 | 46 | 0 |
| 1984 | 34 | 0 |
| 1985 | 31 | 0 |
| 1986 | 29 | 0 |
| 1987 | 38 | 0 |
| 1988 | 38 | 0 |
| 1989 | 56 | 0 |
| 1990 | 53 | 0 |
| 1991 | 65 | 0 |
| 1992 | 95 | 0 |
| 1993 | 82 | 0 |
| 1994 | 89 | 0 |
| 1995 | 141 | 0 |
| 1996 | 103 | 0 |
| 1997 | 101 | 0 |
| 1998 | 130 | 0 |
| 1999 | 119 | 0 |
| 2000 | 100 | 0 |
| 2001 | 115 | 52 |
| 2002 | 83 | 137 |
| 2003 | 119 | 167 |
| 2004 | 106 | 197 |
| 2005 | 95 | 191 |
| 2006 | 103 | 221 |
| 2007 | 108 | 206 |
| 2008 | 113 | 201 |
| 2009 | 119 | 241 |
| 2010 | 162 | 229 |
| 2011 | 147 | 219 |
| 2012 | 184 | 184 |
| 2013 | 186 | 207 |
| 2014 | 213 | 289 |
| 2015 | 227 | 302 |
| 2016 | 247 | 272 |
| 2017 | 269 | 375 |
| 2018 | 250 | 339 |
| 2019 | 331 | 335 |
| 2020 | 318 | 370 |
| 2021 | 327 | 338 |
| 2022 | 334 | 353 |
| 2023 | 272 | 264 |
| 2024 | 238 | 224 |
| 2025 | 204 | 151 |
| 2026 | 83 | 114 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mixing tube for exhaust system and operating strategy for same6 Oct 2026US 12,753,714 B2Caterpillar Inc.
- 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
- Method for manufacturing exhaust gas purification catalyst29 Sep 2026US 12,746,538 B2Cataler Corporation
- Electrically heatable honeycomb structure having corrugated layers of different cell density22 Sep 2026US 12,742,405 B2Vitesco Technologies GmbH
- Exhaust purification device8 Oct 2026US 2026/0307009 A1Mazda Motor Corporation
- Containerized ultra-low nox diesel engine generator set with roof-mounted selective catalytic reduction system8 Oct 2026US 2026/0309075 A1Industrial Service Solutions WC, Inc.
- 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
- Exhaust aftertreatment system24 Sep 2026US 2026/0286878 A1Donaldson Company, Inc.
Most cited
By later US patents
- Treatment of diesel exhaust gases207US 4,902,487 AJohnson Matthey PLC · 1990
- Flexible nonwoven mat204US 5,380,580 AMinnesota Mining and Manufacturing Company · 1995
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- Compact vacuum insulation176US 5,157,893 AMidwest Research Institute · 1992
- Compact vacuum insulation174US 5,175,975 AMidwest Research Institute · 1993