F02D 2041/224
Diagnosis of the fuel system
Official title: {Diagnosis of the fuel system}
F02D2041/224 (Diagnosis of the fuel system) appears on 794 US grants and 742 published applications in this corpus.
Search patents in F02D- Granted patents
- 794
- Published applications
- 742
- Assignees
- 206
- Inventors
- 1,647
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 1 | 0 |
| 1988 | 7 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 11 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 5 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 9 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 5 |
| 2002 | 11 | 9 |
| 2003 | 10 | 6 |
| 2004 | 7 | 9 |
| 2005 | 12 | 11 |
| 2006 | 9 | 10 |
| 2007 | 12 | 14 |
| 2008 | 15 | 24 |
| 2009 | 11 | 23 |
| 2010 | 17 | 23 |
| 2011 | 18 | 12 |
| 2012 | 14 | 31 |
| 2013 | 20 | 30 |
| 2014 | 21 | 33 |
| 2015 | 27 | 51 |
| 2016 | 41 | 45 |
| 2017 | 33 | 51 |
| 2018 | 57 | 51 |
| 2019 | 55 | 50 |
| 2020 | 44 | 57 |
| 2021 | 73 | 57 |
| 2022 | 73 | 43 |
| 2023 | 43 | 29 |
| 2024 | 29 | 24 |
| 2025 | 11 | 19 |
| 2026 | 18 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Controller for a fuel supply system29 Sep 2026US 12,747,709 B2Toyota Jidosha Kabushiki Kaisha
- Detection and identification of fuel injector failure modes28 Jul 2026US 12,692,820 B1Cummins Inc.
- Methods and systems for detecting high friction within flow control devices14 Jul 2026US 12,680,518 B2Cummins Inc.
- Systems and methods for venting a pressurized fluid used as a fuel in an engine23 Jun 2026US 12,662,971 B2Caterpillar Inc.
- Diagnosing and remediating fuel injection drift utilizing fuel rail pressure measurements19 May 2026US 12,631,153 B2Caterpillar Inc.
- Non-intrusive fueling event measurement for fueling systems8 Oct 2026US 2026/0309103 A1Cummins-Scania HPCR System, LLC
- Automatic injector cutout tool1 Oct 2026US 2026/0298169 A1Transportation IP Holdings, LLC
- Apparatuses, processes, and systems including fuel composition determination1 Oct 2026US 2026/0298170 A1Clummins Inc.
- Fuel leakage diagnostic and fuel system diagnostic management apparatuses, methods, and systems1 Oct 2026US 2026/0298171 A1Cummins-Scania HPCR System, LLC
- Internal Combustion Engine Control Device and Internal Combustion Engine Control Method20 Aug 2026US 2026/0243213 A1Astemo, Ltd.
Most cited
By later US patents
- System and methods for electronic control of an accumulator fuel system101US 5,678,521 ACummins Engine Company, Inc. · 1997
- Methods and systems for supplying fuel to gas turbine engines84US 11,015,536 B2BJ Energy Solutions, LLC · 2021
- High pressure fuel injection system for internal combustion engine84US 6,024,064 ADenso Corporation · 2000
- Internal combustion engine with on-board diagnostic system for detecting impaired fuel injectors83US 5,445,019 AFord Motor Company · 1995
- Fuel control system including adaptive injected fuel quantity estimation80US 6,557,530 B1Cummins Inc. · 2003