F02D 41/0235
In relation with the state of the exhaust gas treating apparatus
Official title: {in relation with the state of the exhaust gas treating apparatus (control of exhaust gas treating apparatus per se F01N)}
F02D41/0235 (In relation with the state of the exhaust gas treating apparatus) appears on 4,316 US grants and 4,321 published applications in this corpus.
Search patents in F02D- Granted patents
- 4,316
- Published applications
- 4,321
- Assignees
- 473
- Inventors
- 6,143
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 10 | 0 |
| 1994 | 14 | 0 |
| 1995 | 22 | 0 |
| 1996 | 21 | 0 |
| 1997 | 22 | 0 |
| 1998 | 49 | 0 |
| 1999 | 47 | 0 |
| 2000 | 56 | 0 |
| 2001 | 109 | 52 |
| 2002 | 133 | 158 |
| 2003 | 143 | 181 |
| 2004 | 153 | 198 |
| 2005 | 153 | 197 |
| 2006 | 180 | 173 |
| 2007 | 134 | 202 |
| 2008 | 105 | 207 |
| 2009 | 109 | 214 |
| 2010 | 140 | 184 |
| 2011 | 168 | 181 |
| 2012 | 199 | 189 |
| 2013 | 162 | 204 |
| 2014 | 198 | 158 |
| 2015 | 176 | 201 |
| 2016 | 190 | 220 |
| 2017 | 201 | 204 |
| 2018 | 189 | 220 |
| 2019 | 212 | 178 |
| 2020 | 202 | 222 |
| 2021 | 220 | 139 |
| 2022 | 204 | 146 |
| 2023 | 137 | 108 |
| 2024 | 115 | 82 |
| 2025 | 77 | 54 |
| 2026 | 29 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02D 41/027To purge or regenerate the exhaust gas treating apparatus2,310
- F02D 41/024To increase temperature of the exhaust gas treating apparatus1,687
- F02D 41/0295Control according to the amount of oxygen that is stored on the394
- F02D 2041/0265To decrease temperature of the exhaust gas treating apparatusIndexing code129
Recent patents
- Engine control system, method for controlling a dual fuel engine, and non-transitory computer-readable medium6 Oct 2026US 12,753,726 B2Cummins Power Generation Inc.
- Systems and methods for migitating cold start emissions by managing turbocharger turbine speed29 Sep 2026US 12,747,710 B2GM Global Technology Operations LLC
- Internal combustion engine system15 Sep 2026US 12,736,016 B2Toyota Jidosha Kabushiki Kaisha
- System and method for adaptive control of air-to-fuel ratio18 Aug 2026US 12,710,014 B2Caterpillar Inc.
- System and method for operating an engine11 Aug 2026US 12,704,098 B2Ford Global Technologies, LLC
- Control method of aftertreatment system, control program, aftertreatment system, and engine system1 Oct 2026US 2026/0295529 A1Yanmar Holdings Co., Ltd.
- Controller and control method1 Oct 2026US 2026/0298166 A1Toyota Jidosha Kabushiki Kaisha
- Control device for vehicle24 Sep 2026US 2026/0285291 A1Toyota Jidosha Kabushiki Kaisha
- Multi-fuel engines and controls using hydrogen fuel substitution10 Sep 2026US 2026/0266232 A1Cummins Inc.
- Method for determining condition of exhaust system, and device for determining condition of exhaust system3 Sep 2026US 2026/0258746 A1Nissan Motor Co., Ltd.
Most cited
By later US patents
- Exhaust purification device of internal combustion engine199US 5,473,887 AToyota Jidosha Kabushiki Kaisha · 1995
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Exhaust gas purification device for an internal combustion engine197US 5,974,791 AToyota Jidosha Kabushiki Kaisha · 1999
- Method and apparatus for desulfating a no.sub.x trap176US 5,974,788 AFord Global Technologies, LLC · 1999
- Apparatus and method for internal combustion engine control173US 5,657,625 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1997