F02D 41/1439
Characterised by the position of the sensor
Official title: {characterised by the position of the sensor}
F02D41/1439 (Characterised by the position of the sensor) appears on 1,858 US grants and 1,468 published applications in this corpus.
Search patents in F02D- Granted patents
- 1,858
- Published applications
- 1,468
- Assignees
- 282
- Inventors
- 2,722
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 7 | 0 |
| 1978 | 10 | 0 |
| 1979 | 8 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 8 | 0 |
| 1988 | 15 | 0 |
| 1989 | 18 | 0 |
| 1990 | 13 | 0 |
| 1991 | 11 | 0 |
| 1992 | 25 | 0 |
| 1993 | 25 | 0 |
| 1994 | 30 | 0 |
| 1995 | 40 | 0 |
| 1996 | 25 | 0 |
| 1997 | 36 | 0 |
| 1998 | 58 | 0 |
| 1999 | 39 | 0 |
| 2000 | 41 | 0 |
| 2001 | 45 | 10 |
| 2002 | 51 | 67 |
| 2003 | 68 | 72 |
| 2004 | 66 | 77 |
| 2005 | 54 | 45 |
| 2006 | 47 | 50 |
| 2007 | 42 | 58 |
| 2008 | 30 | 45 |
| 2009 | 34 | 49 |
| 2010 | 37 | 38 |
| 2011 | 40 | 73 |
| 2012 | 53 | 65 |
| 2013 | 50 | 77 |
| 2014 | 58 | 65 |
| 2015 | 66 | 99 |
| 2016 | 75 | 114 |
| 2017 | 115 | 77 |
| 2018 | 96 | 88 |
| 2019 | 89 | 71 |
| 2020 | 91 | 82 |
| 2021 | 79 | 37 |
| 2022 | 47 | 26 |
| 2023 | 20 | 22 |
| 2024 | 25 | 15 |
| 2025 | 24 | 19 |
| 2026 | 11 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 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.
- Method and system for controlling diesel engine emissions by fuel blending30 Jun 2026US 12,669,097 B2Clear Torque, LLC
- Feedback fuel control for dual path exhaust system30 Jun 2026US 12,669,098 B2Ford Global Technologies, LLC
- Methods and systems for modulating engine air-fuel ratio during cylinder imbalance diagnostic26 May 2026US 12,637,990 B1Ford Global Technologies, LLC
- Control Device10 Sep 2026US 2026/0266236 A1Astemo, Ltd.
- Exhaust gas purification device, exhaust gas purification method, and control device20 Aug 2026US 2026/0243204 A1Komatsu Ltd.
- Detonation detection2 Jul 2026US 2026/0185902 A1Caterpillar Inc.
- System and method for adaptive control of air-to-fuel ratio18 Jun 2026US 2026/0168452 A1Caterpillar Inc.
- Methods and systems for diagnosing four oxygen sensor system18 Jun 2026US 2026/0168456 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Method and apparatus for desulfating a no.sub.x trap176US 5,974,788 AFord Global Technologies, LLC · 1999
- Method for controlling the level of oxygen stored by a catalyst within a catalytic converter152US 5,842,340 AMotorola, Inc. · 1998
- Method and apparatus to limit a midbed temperature of a catalytic converter131US 5,414,994 AFord Motor Company · 1995
- Air/fuel control with on-board emission measurement118US 5,452,576 AFord Motor Company · 1995
- Method and apparatus for monitoring and adjusting .lambda.-probe-controlled catalytic exhaust gas emission control systems of internal combustion engines114US 4,622,809 ADaimler-Benz Aktiengesellschaft · 1986