F02D 21/02
Peculiar to oxygen-fed engines
Official title: peculiar to oxygen-fed engines
F02D21/02 (Peculiar to oxygen-fed engines) appears on 42 US grants and 36 published applications in this corpus.
Search patents in F02D- Granted patents
- 42
- Published applications
- 36
- Assignees
- 21
- Inventors
- 99
- Latest grant
- 17 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 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 | 1 |
| 2014 | 0 | 1 |
| 2015 | 2 | 8 |
| 2016 | 4 | 2 |
| 2017 | 4 | 2 |
| 2018 | 0 | 2 |
| 2019 | 1 | 2 |
| 2020 | 4 | 3 |
| 2021 | 8 | 3 |
| 2022 | 3 | 2 |
| 2023 | 3 | 2 |
| 2024 | 4 | 2 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- System and method for diagnosing an exhaust gas sensor17 Dec 2024US 12,169,155 B2Ford Global Technologies, LLC
- System for controlling production of ozone for an internal combustion engine3 Dec 2024US 12,158,125 B1
- Camless engines25 Jun 2024US 12,018,624 B1
- Internal combustion engine with oxygen concentrating equipment, method, program product and computer-readable medium for operating internal combustion engine with oxygen concentrating equipment26 Mar 2024US 11,939,927 B2
- Systems and methods for exhaust gas recirculation12 Sep 2023US 11,754,007 B2Cummins Inc.
- Camless engines8 May 2025US 2025/0146445 A1
- System and method for diagnosing an exhaust gas sensor15 Aug 2024US 2024/0272038 A1Ford Global Technologies, LLC
- Ammonia-hydrogen fusion fuel diffusion combustion control system based on reactivity regulation18 Jan 2024US 2024/0018915 A1Dongfeng Honda Engine Co.,Ltd.
- Oxygen supplementation system for supporting combustion engines in oxygen diminished environments27 Apr 2023US 2023/0129221 A1Pyronemesis, Inc.
- Internal combustion engine with oxygen concentrating equipment, method, program product and computer-readable medium for operating internal combustion engine with oxygen concentrating equipment2 Feb 2023US 2023/0035188 A1
Most cited
By later US patents
- Gas supply apparatus for internal combustion engine38US 9,062,631 B2Denso Corporation · 2015
- System and method for adjusting a torque capacity of an engine using model predictive control30US 9,399,959 B2GM Global Technology Operations LLC · 2016
- Linear gaseous fuel flow controller24US 5,584,467 AEchlin Inc. · 1996
- 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