F02M 26/49
Detecting, diagnosing or indicating an abnormal function of the egr system
Official title: Detecting, diagnosing or indicating an abnormal function of the EGR system
F02M26/49 (Detecting, diagnosing or indicating an abnormal function of the egr system) appears on 385 US grants and 308 published applications in this corpus.
Search patents in F02M- Granted patents
- 385
- Published applications
- 308
- Assignees
- 92
- Inventors
- 793
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 6 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 7 | 0 |
| 1997 | 10 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 5 |
| 2002 | 9 | 10 |
| 2003 | 10 | 8 |
| 2004 | 8 | 5 |
| 2005 | 15 | 10 |
| 2006 | 8 | 8 |
| 2007 | 11 | 12 |
| 2008 | 4 | 6 |
| 2009 | 6 | 9 |
| 2010 | 6 | 16 |
| 2011 | 8 | 10 |
| 2012 | 6 | 14 |
| 2013 | 12 | 24 |
| 2014 | 15 | 19 |
| 2015 | 14 | 15 |
| 2016 | 24 | 25 |
| 2017 | 15 | 10 |
| 2018 | 22 | 18 |
| 2019 | 20 | 25 |
| 2020 | 20 | 8 |
| 2021 | 18 | 18 |
| 2022 | 19 | 15 |
| 2023 | 12 | 8 |
| 2024 | 10 | 4 |
| 2025 | 4 | 4 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Signal expected range for a vehicle19 Aug 2025US 12,394,260 B2Robert Bosch GmbH
- Evaluation system and method22 Jul 2025US 12,366,306 B2Transportation IP Holdings, LLC
- Method for non-intrusive response time evaluation of a component, unit or system of a vehicle15 Apr 2025US 12,276,241 B2Volvo Truck Corporation
- EGR pump system and control method of EGR pump7 Jan 2025US 12,188,437 B2Eaton Intelligent Power Limited
- EGR pump system and control method of EGR pump19 Nov 2024US 12,146,458 B2Eaton Intelligent Power Limited
- Failure detection device for exhaust gas recirculation device8 Oct 2026US 2026/0309108 A1Mitsubishi Jidosha Kogyo Kabushiki Kaisha
- System and method for controlled heat exchanger swapping17 Sep 2026US 2026/0275893 A1Innio Waukesha Gas Engines Inc.
- Egr valve control apparatus31 Jul 2025US 2025/0243830 A1Honda Motor Co., Ltd.
- Signal expected range for a vehicle3 Apr 2025US 2025/0111715 A1Robert Bosch GmbH
- Egr pump system and control method of egr pump30 Jan 2025US 2025/0035075 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Fault diagnostic system for vehicles using identification and program codes172US 5,491,631 AHonda Giken Kogyo Kabushiki Kaisha · 1996
- System and method for monitoring and detecting faults in a closed-loop system118US 8,700,360 B2Cummins Intellectual Properties, Inc. · 2014
- Method for controlling combustion in an internal combustion engine and predicting performance and emissions78US 7,392,129 B2Westport Power Inc. · 2008
- Exhaust gas recirculation system having cooler73US 6,826,903 B2Denso Corporation · 2004
- Exhaust gas recirculation system fault detector52US 5,190,017 AFord Motor Company · 1993