F02D 21/04
With circulation of exhaust gases in closed or semi-closed circuits
Official title: with circulation of exhaust gases in closed or semi-closed circuits
F02D21/04 (With circulation of exhaust gases in closed or semi-closed circuits) appears on 24 US grants and 20 published applications in this corpus.
Search patents in F02D- Granted patents
- 24
- Published applications
- 20
- Assignees
- 6
- Inventors
- 43
- Latest grant
- 17 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 7 |
| 2016 | 4 | 0 |
| 2017 | 3 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 5 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for diagnosing an exhaust gas sensor17 Dec 2024US 12,169,155 B2Ford Global Technologies, LLC
- Work vehicle power system with decoupled engine air system components7 Feb 2023US 11,572,673 B2Deere & Company
- Systems and methods for increasing engine power output under globally stoichiometric operation15 Feb 2022US 11,248,554 B2Ford Global Technologies, LLC
- Method and system for balancing cylinder air-fuel ratio11 Jan 2022US 11,220,965 B2Ford Global Technologies, LLC
- Fuel oxygen conversion unit with a fuel/gas separator28 Sep 2021US 11,131,256 B2General Electric Company
- System and method for diagnosing an exhaust gas sensor15 Aug 2024US 2024/0272038 A1Ford Global Technologies, LLC
- Work vehicle power system with decoupled engine air system components29 Dec 2022US 2022/0412053 A1Deere & Company
- Systems and methods for increasing engine power output under globally stoichiometric operation4 Mar 2021US 2021/0062748 A1Ford Global Technologies, LLC
- Method and system for balancing cylinder air-fuel ratio18 Feb 2021US 2021/0047973 A1Ford Global Technologies, LLC
- Fuel Oxygen Conversion Unit with a Fuel/Gas Separator7 May 2020US 2020/0141337 A1General Electric Company
Most cited
By later US patents
- System and method for adjusting a torque capacity of an engine using model predictive control30US 9,399,959 B2GM Global Technology Operations LLC · 2016
- Closed cycle internal combustion engine23US 5,016,599 ACosworth Deep Sea Systems Limited · 1991
- Model predictive control systems and methods for internal combustion engines16US 9,599,053 B2GM Global Technology Operations LLC · 2017
- Model predictive control systems and methods for internal combustion engines14US 9,347,381 B2GM Global Technology Operations LLC · 2016
- Diagnostic systems and methods using model predictive control13US 9,382,865 B2GM Global Technology Operations LLC · 2016