F02M 26/21
With egr valves located at or near the connection to the intake
Official title: with EGR valves located at or near the connection to the intake system
F02M26/21 (With egr valves located at or near the connection to the intake) appears on 295 US grants and 267 published applications in this corpus.
Search patents in F02M- Granted patents
- 295
- Published applications
- 267
- Assignees
- 134
- Inventors
- 662
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 9 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 11 | 0 |
| 2001 | 4 | 3 |
| 2002 | 6 | 5 |
| 2003 | 12 | 13 |
| 2004 | 6 | 7 |
| 2005 | 14 | 29 |
| 2006 | 9 | 14 |
| 2007 | 20 | 26 |
| 2008 | 6 | 10 |
| 2009 | 9 | 11 |
| 2010 | 9 | 8 |
| 2011 | 6 | 8 |
| 2012 | 7 | 7 |
| 2013 | 2 | 5 |
| 2014 | 4 | 5 |
| 2015 | 7 | 18 |
| 2016 | 10 | 15 |
| 2017 | 11 | 10 |
| 2018 | 11 | 17 |
| 2019 | 14 | 18 |
| 2020 | 18 | 14 |
| 2021 | 15 | 9 |
| 2022 | 8 | 6 |
| 2023 | 6 | 4 |
| 2024 | 1 | 3 |
| 2025 | 4 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Exhaust gas recirculation system, engine assembly, and vehicle23 Dec 2025US 12,503,990 B2BYD Company Limited
- Exhaust gas recirculation valve assembly19 Aug 2025US 12,392,309 B2Power Packer North America, Inc.
- Supplying a mixture of air and exhaust gas to a compressor wheel of a compressor13 May 2025US 12,297,842 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- EGR mixing and adjusting apparatus and internal combustion engine14 Jan 2025US 12,196,161 B2Weichai Power Co., Ltd.
- System device for stratified injecting exhaust gas recirculation for clean combustion of internal combustion engine18 Jun 2024US 12,012,912 B2Tianjin University
- Exhaust gas recirculation mixer with fuel nozzle25 Dec 2025US 2025/0389241 A1Woodward, Inc.
- Exhaust gas recirculation system, engine assembly, and vehicle9 Jan 2025US 2025/0012242 A1BYD Company Limited
- Exhaust gas recirculation valve assembly22 Aug 2024US 2024/0280071 A1Power Packer North America, Inc.
- Egr mixing and adjusting apparatus and internal combustion engine11 Jul 2024US 2024/0229750 A1Weichai Power Co., Ltd.
- Supplying a mixture of air and exhaust gas to a compressor wheel of a compressor16 May 2024US 2024/0159242 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
Most cited
By later US patents
- Turbocharging systems for internal combustion engines208US 5,771,868 ATurbodyne Systems, Inc. · 1998
- Turbocharging systems for internal combustion engines197US 6,062,026 ATurbodyne Systems, Inc. · 2000
- EGR and blow-by flow system for highly turbocharged diesel engines92US 5,611,204 ACummins Engine Company, Inc. · 1997
- Filter for EGR system heated by an enclosing catalyst72US 6,625,978 B12003
- Engine exhaust gas recirculation control mechanism65US 5,333,456 ACarter Automotive Company, Inc. · 1994