F02D 2041/2055
With means for determining actual opening or closing time
Official title: {with means for determining actual opening or closing time}
F02D2041/2055 (With means for determining actual opening or closing time) appears on 410 US grants and 392 published applications in this corpus.
Search patents in F02D- Granted patents
- 410
- Published applications
- 392
- Assignees
- 130
- Inventors
- 832
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 4 |
| 2002 | 9 | 8 |
| 2003 | 10 | 6 |
| 2004 | 5 | 6 |
| 2005 | 6 | 8 |
| 2006 | 7 | 7 |
| 2007 | 5 | 5 |
| 2008 | 7 | 8 |
| 2009 | 3 | 10 |
| 2010 | 4 | 10 |
| 2011 | 9 | 11 |
| 2012 | 3 | 19 |
| 2013 | 8 | 17 |
| 2014 | 14 | 19 |
| 2015 | 15 | 26 |
| 2016 | 26 | 36 |
| 2017 | 18 | 33 |
| 2018 | 40 | 41 |
| 2019 | 38 | 27 |
| 2020 | 38 | 22 |
| 2021 | 29 | 26 |
| 2022 | 37 | 21 |
| 2023 | 17 | 8 |
| 2024 | 12 | 6 |
| 2025 | 7 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Injector valve force control11 Aug 2026US 12,704,100 B2Caterpillar Inc.
- Valve arrival time detection in fuel system having dual solenoid operated valves3 Mar 2026US 12,565,870 B2Caterpillar Inc.
- Electromagnetic valve driving device17 Feb 2026US 12,553,400 B2Hitachi Astemo, Ltd.
- Pressure control for fuel injectors13 Jan 2026US 12,523,186 B2Caterpillar Inc.
- Control device and method for controlling an injector30 Dec 2025US 12,510,040 B2Hitachi Astemo, Ltd.
- System and related method for fuel injection systems13 Aug 2026US 2026/0235096 A1Caterpillar Inc.
- Fueling system controls including detection of valve fully open condition16 Jul 2026US 2026/0201846 A1Cummins Inc.
- Injector valve force control18 Jun 2026US 2026/0168457 A1Caterpillar Inc.
- Pressure control for fuel injectors18 Sep 2025US 2025/0290462 A1Caterpillar Inc.
- Control Device and Method for Controlling an Injector21 Aug 2025US 2025/0264071 A1Hitachi Astemo, Ltd.
Most cited
By later US patents
- Method of operating an electromagnetically actuated fuel intake or exhaust valve of an internal combustion engine102US 4,823,825 A1989
- System and methods for electronic control of an accumulator fuel system101US 5,678,521 ACummins Engine Company, Inc. · 1997
- Method and structure for controlling an apparatus, such as a fuel injector, using electronic trimming70US 5,634,448 ACaterpillar Inc. · 1997
- Method and apparatus for accurately determining opening and closing times for automotive fuel injectors70US 5,747,684 ASiemens Automotive Corporation · 1998
- Fuel injection control apparatus for internal combustion engine59US 5,402,760 ANippondenso Co., Ltd. · 1995