F02D 41/0255
To accelerate the warming-up of the exhaust gas treating apparatus at engine
Official title: {to accelerate the warming-up of the exhaust gas treating apparatus at engine start}
F02D41/0255 (To accelerate the warming-up of the exhaust gas treating apparatus at engine) appears on 478 US grants and 467 published applications in this corpus.
Search patents in F02D- Granted patents
- 478
- Published applications
- 467
- Assignees
- 116
- Inventors
- 1,131
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 5 |
| 2002 | 11 | 16 |
| 2003 | 22 | 15 |
| 2004 | 7 | 30 |
| 2005 | 19 | 16 |
| 2006 | 26 | 14 |
| 2007 | 18 | 19 |
| 2008 | 13 | 21 |
| 2009 | 7 | 17 |
| 2010 | 9 | 18 |
| 2011 | 15 | 14 |
| 2012 | 14 | 11 |
| 2013 | 12 | 19 |
| 2014 | 14 | 17 |
| 2015 | 14 | 25 |
| 2016 | 17 | 20 |
| 2017 | 19 | 23 |
| 2018 | 27 | 36 |
| 2019 | 30 | 11 |
| 2020 | 21 | 29 |
| 2021 | 26 | 27 |
| 2022 | 36 | 23 |
| 2023 | 24 | 16 |
| 2024 | 22 | 13 |
| 2025 | 16 | 6 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for migitating cold start emissions by managing turbocharger turbine speed29 Sep 2026US 12,747,710 B2GM Global Technology Operations LLC
- System and method for operating an engine11 Aug 2026US 12,704,098 B2Ford Global Technologies, LLC
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- Intake and exhaust system28 Oct 2025US 12,454,923 B2Subaru Corporation
- System and method to maintain hot aftertreatment at engine idle21 Oct 2025US 12,448,909 B2Eaton Intelligent Power Limited
- Control device for vehicle24 Sep 2026US 2026/0285291 A1Toyota Jidosha Kabushiki Kaisha
- Rapid exhaust catalyst heating using a glow plug27 Aug 2026US 2026/0251081 A1Saudi Arabian Oil Company
- Control apparatus for internal combustion engine20 Aug 2026US 2026/0243209 A1Honda Motor Co., Ltd.
- Engine control device, vehicle, engine control program, and engine control method13 Aug 2026US 2026/0235087 A1Isuzu Motors Limited
- Hydrogen combustion engine arrangement and method of operating a hydrogen combustion engine arrangement14 May 2026US 2026/0132749 A1Volvo Truck Corporation
Most cited
By later US patents
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Process for controlling a multiple cylinder internal combustion engine in the cold start and warming up phases95US 5,930,992 AFEV Motorentechnik GmbH & Co. Kommanditgesellschaft · 1999
- Electronic ignition system with modulated cylinder-to-cylinder timing71US 5,626,117 AFord Motor Company · 1997
- Method of and system for purifying exhaust gas for engines58US 5,950,419 AMazda Motor Corporation · 1999
- Method and system for reducing noxious components in the exhaust emission of internal combustion engine systems and particularly during the warm-up phase of the engine57US 3,949,551 ARobert Bosch GmbH · 1976