F02D 41/1438
Using means for determining characteristics of the combustion gases
Official title: {using means for determining characteristics of the combustion gases; Sensors therefor}
F02D41/1438 (Using means for determining characteristics of the combustion gases) appears on 7,621 US grants and 6,076 published applications in this corpus.
Search patents in F02D- Granted patents
- 7,621
- Published applications
- 6,076
- Assignees
- 812
- Inventors
- 9,726
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 29 | 0 |
| 1977 | 44 | 0 |
| 1978 | 75 | 0 |
| 1979 | 72 | 0 |
| 1980 | 62 | 0 |
| 1981 | 50 | 0 |
| 1982 | 44 | 0 |
| 1983 | 61 | 0 |
| 1984 | 60 | 0 |
| 1985 | 57 | 0 |
| 1986 | 44 | 0 |
| 1987 | 67 | 0 |
| 1988 | 78 | 0 |
| 1989 | 65 | 0 |
| 1990 | 65 | 0 |
| 1991 | 64 | 0 |
| 1992 | 74 | 0 |
| 1993 | 78 | 0 |
| 1994 | 78 | 0 |
| 1995 | 92 | 0 |
| 1996 | 82 | 0 |
| 1997 | 105 | 0 |
| 1998 | 142 | 0 |
| 1999 | 112 | 0 |
| 2000 | 131 | 0 |
| 2001 | 139 | 48 |
| 2002 | 173 | 198 |
| 2003 | 193 | 244 |
| 2004 | 229 | 248 |
| 2005 | 213 | 209 |
| 2006 | 206 | 204 |
| 2007 | 183 | 246 |
| 2008 | 148 | 224 |
| 2009 | 153 | 265 |
| 2010 | 192 | 229 |
| 2011 | 190 | 284 |
| 2012 | 210 | 278 |
| 2013 | 241 | 318 |
| 2014 | 255 | 242 |
| 2015 | 270 | 333 |
| 2016 | 283 | 382 |
| 2017 | 351 | 345 |
| 2018 | 360 | 356 |
| 2019 | 385 | 312 |
| 2020 | 357 | 309 |
| 2021 | 324 | 222 |
| 2022 | 248 | 170 |
| 2023 | 174 | 143 |
| 2024 | 158 | 105 |
| 2025 | 108 | 81 |
| 2026 | 47 | 81 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02D 41/1444Characterised by the characteristics of the combustion gases5,445
- F02D 41/1439Characterised by the position of the sensor1,858
- F02D 41/1493Details1,113
- F02D 41/1473Characterised by the regulation method1,031
- F02D 41/1477Characterised by the regulation circuit or part of it731
- F02D 41/1486With correction for particular operating conditions549
Recent patents
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- Internal combustion engine system15 Sep 2026US 12,736,016 B2Toyota Jidosha Kabushiki Kaisha
- Input control based on atmospheric oxygen15 Sep 2026US 12,736,509 B2
- Control device for internal combustion engine25 Aug 2026US 12,716,393 B2Toyota Jidosha Kabushiki Kaisha
- Controller and control method1 Oct 2026US 2026/0298166 A1Toyota Jidosha Kabushiki Kaisha
- Input control based on atmospheric oxygen1 Oct 2026US 2026/0298898 A1
- Methods and systems for controlling an engine following a fuel cut-off event17 Sep 2026US 2026/0275929 A1Ford Global Technologies, LLC
- Internal combustion engine17 Sep 2026US 2026/0275930 A1
- Control Device10 Sep 2026US 2026/0266236 A1Astemo, Ltd.
Most cited
By later US patents
- Internal combustion engine control for improved fuel efficiency208US 7,577,511 B1Tula Technology, Inc. · 2009
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Method and apparatus for desulfating a no.sub.x trap176US 5,974,788 AFord Global Technologies, LLC · 1999
- Differential torque operation for internal combustion engine167US 7,503,312 B2Ford Global Technologies, LLC · 2009
- Low emission, diesel-cycle engine158US 6,470,682 B2The United States of America as represented by the Administrator of the United States Environmental Protection Agency · 2002