F02D 19/0623
Failure diagnosis or prevention
Official title: {Failure diagnosis or prevention; Safety measures; Testing}
F02D19/0623 (Failure diagnosis or prevention) appears on 191 US grants and 194 published applications in this corpus.
Search patents in F02D- Granted patents
- 191
- Published applications
- 194
- Assignees
- 98
- Inventors
- 444
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 4 |
| 2004 | 4 | 1 |
| 2005 | 0 | 3 |
| 2006 | 1 | 2 |
| 2007 | 2 | 2 |
| 2008 | 2 | 9 |
| 2009 | 5 | 19 |
| 2010 | 16 | 25 |
| 2011 | 16 | 7 |
| 2012 | 14 | 14 |
| 2013 | 9 | 8 |
| 2014 | 12 | 15 |
| 2015 | 4 | 11 |
| 2016 | 11 | 11 |
| 2017 | 11 | 7 |
| 2018 | 9 | 8 |
| 2019 | 7 | 14 |
| 2020 | 10 | 5 |
| 2021 | 10 | 6 |
| 2022 | 8 | 3 |
| 2023 | 4 | 0 |
| 2024 | 3 | 4 |
| 2025 | 1 | 9 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dual fuel engine system and method for controlling dual fuel engine system30 Jun 2026US 12,669,093 B2Cummins Power Generation Inc.
- System for remotely monitoring and controlling operation of a hydro-diesel engine20 May 2025US 12,305,584 B2H2Diesel, Inc.
- Dual fuel engine system and method for controlling dual fuel engine system17 Dec 2024US 12,168,962 B2Cummins Power Generation Inc.
- System for remotely monitoring and controlling operation of a hydro-diesel engine5 Nov 2024US 12,134,990 B2H2Diesel, Inc.
- Dual fuel engine system and method for controlling dual fuel engine system6 Aug 2024US 12,055,105 B2Cummins Power Generation Inc.
- Hydrogen mixed-combustion electronic control device and power generation system using same11 Jun 2026US 2026/0160211 A1Hitachi, Ltd.
- System and related methods for fuel pressure monitoring11 Jun 2026US 2026/0160217 A1Caterpillar Inc.
- Controller19 Mar 2026US 2026/0078706 A1Toyota Jidosha Kabushiki Kaisha
- Engine system5 Feb 2026US 2026/0036094 A1Yanmar Holdings Co., Ltd.
- Multifunctional switch base assembly and control method thereof15 Jan 2026US 2026/0015981 A1Zhejiang Constant Power Machinery Co., Ltd.
Most cited
By later US patents
- Methods and apparatus for operation of multiple fuel engines199US 7,222,015 B2Engine Control Technology, LLC · 2007
- Method and apparatus for dual fuel injection into an internal combustion engine93US 6,202,601 B1Westport Research Inc. · 2001
- Dual fuel electronic control system91US 5,224,457 ADeere & Company · 1993
- Multi-fuel engine conversion system and method90US 7,019,626 B1Omnitek Engineering Corporation · 2006
- Neural control system and method for alternatively fueled engines82US 6,687,597 B2Saskatchewan Research Council · 2004