F01N 3/033
In combination with other devices
Official title: in combination with other devices {(with adsorbents or absorbents F01N3/0821)}
F01N3/033 (In combination with other devices) appears on 2,614 US grants and 3,145 published applications in this corpus.
Search patents in F01N- Granted patents
- 2,614
- Published applications
- 3,145
- Assignees
- 592
- Inventors
- 4,724
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 12 | 0 |
| 1983 | 12 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 5 | 0 |
| 1987 | 10 | 0 |
| 1988 | 6 | 0 |
| 1989 | 13 | 0 |
| 1990 | 13 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 10 | 8 |
| 2002 | 13 | 45 |
| 2003 | 26 | 74 |
| 2004 | 56 | 109 |
| 2005 | 61 | 128 |
| 2006 | 68 | 121 |
| 2007 | 70 | 146 |
| 2008 | 68 | 145 |
| 2009 | 80 | 160 |
| 2010 | 84 | 151 |
| 2011 | 93 | 200 |
| 2012 | 125 | 128 |
| 2013 | 166 | 146 |
| 2014 | 155 | 159 |
| 2015 | 169 | 191 |
| 2016 | 140 | 110 |
| 2017 | 155 | 165 |
| 2018 | 110 | 168 |
| 2019 | 153 | 177 |
| 2020 | 142 | 148 |
| 2021 | 150 | 133 |
| 2022 | 117 | 104 |
| 2023 | 88 | 67 |
| 2024 | 66 | 87 |
| 2025 | 71 | 40 |
| 2026 | 21 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Exhaust gas rectifier and exhaust gas purification system1 Sep 2026US 12,723,530 B2Yanmar Holdings Co., Ltd.
- Catalyzed soot filter with reduced ammonia oxidation1 Sep 2026US 12,723,531 B2BASF Mobile Emissions Catalysts LLC
- Work vehicle and aftertreatment system therefor25 Aug 2026US 12,716,375 B2Deere & Company
- Filter regeneration process18 Aug 2026US 12,710,004 B1GM Global Technology Operations LLC
- Mild-hybrid electric vehicle (MHEV) emissions aftertreatment system18 Aug 2026US 12,710,025 B2Saudi Arabian Oil Company
- System for treating an exhaust gas8 Oct 2026US 2026/0307052 A1Johnson Matthey Public Limited Company
- Composite of manganese-based oxide and zeolite useful as nh3-scr catalyst24 Sep 2026US 2026/0284594 A1
- Multi-stage emission system for large displacement compression ignition non-road diesel, diesel-natural gas or alternative fuel mixture generator systems for emergency and non-emergency stationary power applications17 Sep 2026US 2026/0275892 A1Bluefin ESI, Inc.
- Exhaust system and features thereof27 Aug 2026US 2026/0251080 A1ECC TEC MSJ Incorporated
- Engine Assembly20 Aug 2026US 2026/0241341 A1Perkins Engines Company Limited
Most cited
By later US patents
- Method and apparatus for emission control148US 6,314,722 B1Matros Technologies, Inc. · 2001
- Method for regenerating a diesel particulate filter118US 6,594,990 B2Ford Global Technologies, LLC · 2003
- Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines116US 7,062,904 B1Eaton Corporation · 2006
- Controlled temperature combustion engine113US 6,651,432 B1The United States of America as represented by the Administrator of the Environmental Protection Agency · 2003
- Catalyzed diesel exhaust particulate filter112US 5,100,632 AEngelhard Corporation · 1992