F02M 26/39
With two or more egr valves disposed in series
Official title: with two or more EGR valves disposed in series
F02M26/39 (With two or more egr valves disposed in series) appears on 98 US grants and 48 published applications in this corpus.
Search patents in F02M- Granted patents
- 98
- Published applications
- 48
- Assignees
- 61
- Inventors
- 212
- Latest grant
- 18 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 9 | 0 |
| 1979 | 9 | 0 |
| 1980 | 8 | 0 |
| 1981 | 8 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 2 | 0 |
| 2007 | 1 | 4 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 6 |
| 2011 | 4 | 2 |
| 2012 | 2 | 1 |
| 2013 | 2 | 7 |
| 2014 | 1 | 4 |
| 2015 | 5 | 1 |
| 2016 | 3 | 2 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 2 | 2 |
| 2020 | 2 | 2 |
| 2021 | 0 | 1 |
| 2022 | 3 | 1 |
| 2023 | 0 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System device for stratified injecting exhaust gas recirculation for clean combustion of internal combustion engine18 Jun 2024US 12,012,912 B2Tianjin University
- Internal combustion engine system operable in at least two operating modes29 Nov 2022US 11,512,672 B2Volvo Truck Corporation
- Air intake device for engine5 Jul 2022US 11,378,041 B2Mazda Motor Corporation
- Internal combustion engine system, comprising an internal combustion engine and an exhaust gas recirculation circuit1 Mar 2022US 11,261,808 B2Volvo Truck Corporation
- EGR control device25 Aug 2020US 10,753,317 B2Toyota Jidosha Kabushiki Kaisha
- Exhaust gas recirculation circuit for improved particle filter regeneration20 Aug 2026US 2026/0243219 A1Volvo Truck Corporation
- System device for stratified injecting exhaust gas recirculation for clean combustion of internal combustion engine22 Jun 2023US 2023/0193859 A1Tianjin University
- Valve assembly for an exhaust gas recirculation system2 Mar 2023US 2023/0067940 A1BorgWarner Inc.
- Internal combustion engine system operable in at least two operating modes27 Oct 2022US 2022/0341379 A1Volvo Truck Corporation
- Air intake device for engine26 Aug 2021US 2021/0262420 A1Mazda Motor Corporation
Most cited
By later US patents
- Apparatus and method for emissions containment and reduction118US 6,164,063 A2000
- Engine exhaust system for reduction of hydrocarbon emissions78US 5,207,734 ACorning Incorporated · 1993
- Exhaust gas recirculation system56US 5,205,265 AMazda Motor Corporation · 1993
- Exhaust gas recirculation control system for an internal combustion engine53US 4,161,929 AToyota Jidosha Kogyo Kabushiki Kaisha · 1979
- Fast response exhaust gas recirculation (EGR) system49US 4,924,840 AFord Motor Company · 1990