F02D 41/1481
Using a delaying circuit
Official title: {Using a delaying circuit}
F02D41/1481 (Using a delaying circuit) appears on 123 US grants and 27 published applications in this corpus.
Search patents in F02D- Granted patents
- 123
- Published applications
- 27
- Assignees
- 47
- Inventors
- 264
- Latest grant
- 25 Jul 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 6 | 0 |
| 1995 | 2 | 0 |
| 1996 | 9 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 3 | 3 |
| 2003 | 8 | 4 |
| 2004 | 6 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 0 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 0 | 2 |
| 2019 | 2 | 2 |
| 2020 | 1 | 3 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for controlling fuel supplied to an engine25 Jul 2023US 11,708,800 B2Ford Global Technologies, LLC
- Control method of engine system, and engine system18 Jul 2023US 11,703,007 B2Nissan Motor Co., Ltd.
- Oxygen sensor system and method26 Jan 2021US 10,900,433 B2Delphi Technologies IP Limited
- System and method for controlling fuel supplied to an engine21 Jul 2020US 10,718,286 B2Ford Global Technologies, LLC
- Method for diagnosing and controlling two-step exhaust variable valve lift system and vehicle provided with the same method29 Oct 2019US 10,458,357 B2Hyundai Motor Company
- Control method of engine system, and engine system4 Aug 2022US 2022/0243675 A1Nissan Motor Co., Ltd.
- Oxygen sensor system and method26 Nov 2020US 2020/0370495 A1Delphi Technologies IP Limited
- Control system for vehicle15 Oct 2020US 2020/0324753 A1Toyota Jidosha Kabushiki Kaisha
- System and method for controlling fuel supplied to an engine17 Sep 2020US 2020/0291883 A1Ford Global Technologies, LLC
- Multivariable dynamic control system of a multi-fuel engine22 Aug 2019US 2019/0257253 A1General Electric Company
Most cited
By later US patents
- Air-fuel ratio control system96US 4,251,989 ANippondenso Co., Ltd. · 1981
- Fuel control with learning capability for motor vehicle combustion engine86US 4,235,204 AGeneral Motors Corporation · 1980
- Air/fuel ratio control for an internal combustion engine using an exhaust gas sensor70US 4,252,098 AChrysler Corporation · 1981
- Air/fuel ratio estimation system for internal combustion engine68US 5,548,514 AHonda Giken Kogyo Kabushiki Kaisha · 1996
- Regulation of engine parameters in response to vapor recovery purge systems66US 4,748,959 AFord Motor Company · 1988