F02M 26/50
Arrangements or methods for preventing or reducing deposits, corrosion or wear caused
Official title: Arrangements or methods for preventing or reducing deposits, corrosion or wear caused by impurities (arrangement or layout of EGR passages with means for cleaning or treating the recirculated gases F02M26/35; protection of EGR valves from damage F02M26/74)
F02M26/50 (Arrangements or methods for preventing or reducing deposits, corrosion or wear caused) appears on 248 US grants and 241 published applications in this corpus.
Search patents in F02M- Granted patents
- 248
- Published applications
- 241
- Assignees
- 115
- Inventors
- 581
- Latest grant
- 8 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 5 |
| 2002 | 13 | 12 |
| 2003 | 10 | 12 |
| 2004 | 6 | 9 |
| 2005 | 9 | 8 |
| 2006 | 8 | 11 |
| 2007 | 9 | 14 |
| 2008 | 8 | 11 |
| 2009 | 9 | 14 |
| 2010 | 3 | 16 |
| 2011 | 14 | 9 |
| 2012 | 6 | 8 |
| 2013 | 9 | 10 |
| 2014 | 9 | 10 |
| 2015 | 5 | 9 |
| 2016 | 11 | 11 |
| 2017 | 6 | 8 |
| 2018 | 12 | 13 |
| 2019 | 9 | 13 |
| 2020 | 10 | 14 |
| 2021 | 15 | 9 |
| 2022 | 11 | 4 |
| 2023 | 5 | 9 |
| 2024 | 6 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Compact EGR valve8 Jul 2025US 12,352,226 B2Stanadyne Operating Company LLC
- EGR pump system and control method of EGR pump7 Jan 2025US 12,188,437 B2Eaton Intelligent Power Limited
- Internal combustion engine and method for controlling internal combustion engine15 Oct 2024US 12,116,960 B2Kabushiki Kaisha Toyota Jidoshokki
- EGR system and vehicle10 Sep 2024US 12,085,046 B2Guangzhou Automobile Group Co., Ltd.
- Internal combustion engine with a fuel reformer and exhaust gas recirculation27 Aug 2024US 12,071,916 B2Volvo Car Corporation
- Egr valve control apparatus31 Jul 2025US 2025/0243830 A1Honda Motor Co., Ltd.
- Internal combustion engine and method for controlling internal combustion engine27 Jun 2024US 2024/0209816 A1Kabushiki Kaisha Toyota Jidoshokki
- Egr pump system and control method of egr pump23 Nov 2023US 2023/0374958 A1Eaton Intelligent Power Limited
- Internal combustion engine controller and control method19 Oct 2023US 2023/0332550 A1Toyota Jidosha Kabushiki Kaisha
- Internal combustion engine with a fuel reformer and exhaust gas recirculation5 Oct 2023US 2023/0313759 A1Volvo Car Corporation
Most cited
By later US patents
- EGR and blow-by flow system for highly turbocharged diesel engines92US 5,611,204 ACummins Engine Company, Inc. · 1997
- Exhaust gas recirculation in internal combustion engines90US 5,785,030 ADry Systems Technologies · 1998
- Diesel engine equipped for reducing harmful substances in its operation83US 5,517,976 AMTU Motoren- und Turbinen-Union Friedrichshafen GmbH · 1996
- Diesel engine exhaust particulate filter with intake throttling incineration control78US 4,211,075 AGeneral Motors Corporation · 1980
- Diesel engine EGR system with exhaust gas conditioning74US 5,440,880 ANavistar International Transportation Corp. · 1995