F01N 3/2803
Characterised by structure, by material or by manufacturing of catalyst support
Official title: {characterised by structure, by material or by manufacturing of catalyst support}
F01N3/2803 (Characterised by structure, by material or by manufacturing of catalyst support) appears on 2,340 US grants and 2,250 published applications in this corpus.
Search patents in F01N- Granted patents
- 2,340
- Published applications
- 2,250
- Assignees
- 582
- Inventors
- 4,083
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 10 | 0 |
| 1978 | 15 | 0 |
| 1979 | 8 | 0 |
| 1980 | 9 | 0 |
| 1981 | 15 | 0 |
| 1982 | 15 | 0 |
| 1983 | 15 | 0 |
| 1984 | 11 | 0 |
| 1985 | 8 | 0 |
| 1986 | 9 | 0 |
| 1987 | 12 | 0 |
| 1988 | 17 | 0 |
| 1989 | 29 | 0 |
| 1990 | 24 | 0 |
| 1991 | 32 | 0 |
| 1992 | 51 | 0 |
| 1993 | 28 | 0 |
| 1994 | 44 | 0 |
| 1995 | 61 | 0 |
| 1996 | 43 | 0 |
| 1997 | 44 | 0 |
| 1998 | 42 | 0 |
| 1999 | 37 | 0 |
| 2000 | 43 | 0 |
| 2001 | 44 | 23 |
| 2002 | 27 | 50 |
| 2003 | 40 | 68 |
| 2004 | 47 | 71 |
| 2005 | 27 | 78 |
| 2006 | 41 | 75 |
| 2007 | 36 | 72 |
| 2008 | 39 | 72 |
| 2009 | 54 | 89 |
| 2010 | 60 | 52 |
| 2011 | 59 | 64 |
| 2012 | 55 | 48 |
| 2013 | 44 | 41 |
| 2014 | 49 | 95 |
| 2015 | 58 | 86 |
| 2016 | 67 | 63 |
| 2017 | 69 | 105 |
| 2018 | 69 | 129 |
| 2019 | 108 | 139 |
| 2020 | 108 | 137 |
| 2021 | 122 | 162 |
| 2022 | 137 | 181 |
| 2023 | 110 | 128 |
| 2024 | 99 | 111 |
| 2025 | 86 | 51 |
| 2026 | 39 | 60 |
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
- 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
- Display driving device comprising an emission circuit and positive feedback circuit22 Sep 2026US 12,742,407 B2Purem GmbH
- Exhaust purification device8 Oct 2026US 2026/0307009 A1Mazda Motor Corporation
- 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.
- 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
- Method and apparatus for treating an engine exhaust gas stream154US 6,171,556 B2Engelhard Corporation · 2001
- Catalyzed SCR filter and emission treatment system132US 7,229,597 B2BASFD Catalysts LLC · 2007
- Method for producing ceramic honeycomb filters127US 4,293,357 ANGK Insulators, Ltd. · 1981
- Energy management system for hybrid vehicle125US 5,345,761 AFord Motor Company · 1994
- Exhaust gas treatment system120US 6,087,298 AEngelhard Corporation · 2000