F02D 2041/2068
Characterised by the circuit design or special circuit elements
Official title: {characterised by the circuit design or special circuit elements}
F02D2041/2068 (Characterised by the circuit design or special circuit elements) appears on 318 US grants and 232 published applications in this corpus.
Search patents in F02D- Granted patents
- 318
- Published applications
- 232
- Assignees
- 135
- Inventors
- 626
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 10 | 0 |
| 1999 | 13 | 0 |
| 2000 | 10 | 0 |
| 2001 | 10 | 6 |
| 2002 | 10 | 13 |
| 2003 | 20 | 15 |
| 2004 | 16 | 24 |
| 2005 | 11 | 25 |
| 2006 | 21 | 5 |
| 2007 | 9 | 10 |
| 2008 | 5 | 9 |
| 2009 | 5 | 11 |
| 2010 | 8 | 3 |
| 2011 | 6 | 1 |
| 2012 | 4 | 9 |
| 2013 | 7 | 3 |
| 2014 | 4 | 12 |
| 2015 | 4 | 20 |
| 2016 | 7 | 7 |
| 2017 | 19 | 3 |
| 2018 | 11 | 9 |
| 2019 | 5 | 10 |
| 2020 | 6 | 11 |
| 2021 | 17 | 11 |
| 2022 | 13 | 11 |
| 2023 | 6 | 1 |
| 2024 | 5 | 1 |
| 2025 | 1 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02D 2041/2075Type of transistors or particular use thereofIndexing code123
- F02D 2041/2072Bridge circuits, i.e. the load being placed in the diagonal of aIndexing code84
- F02D 2041/2079The circuit having several coils acting on the same anchorIndexing code84
- F02D 2041/2082The circuit being adapted to distribute current between different actuators or recuperateIndexing code53
Recent patents
- Purge valve driving control device3 Jun 2025US 12,322,544 B2Bosch Corporation
- Device for detecting the state of a fuel injector20 Aug 2024US 12,065,981 B2Liebherr-Components Deggendorf GmbH
- Mixed fuel engine11 Jun 2024US 12,006,887 B2Innovative Fuel Systems Ltd.
- Load drive device and method of controlling fuel injection device20 Feb 2024US 11,905,906 B2Hitachi Astemo, Ltd.
- Systems and methods for fuel injector control9 Jan 2024US 11,867,142 B2Transportation IP Holdings, LLC
- Novel system for enhancing thermomechnical efficiency and reducing emissions and noise levels in ic engines9 Jul 2026US 2026/0194025 A1
- Electromagnetic Fuel Injector With Two Independent Coils and Related Control Method16 Jan 2025US 2025/0020096 A1Marelli Europe S.P.A.
- Purge valve driving control device1 Aug 2024US 2024/0258005 A1Bosch Corporation
- Device for detecting the state of a fuel injector25 May 2023US 2023/0160353 A1Liebherr-Components Deggendorf GmbH
- Mixed fuel engine1 Dec 2022US 2022/0381191 A1Innovative Fuel Systems Ltd.
Most cited
By later US patents
- Valve controller systems and methods and fuel injection systems utilizing the same76US 5,954,030 A1999
- Method and structure for controlling an apparatus, such as a fuel injector, using electronic trimming70US 5,634,448 ACaterpillar Inc. · 1997
- Method of reducing the impact speed of an armature in an electromagnetic actuator68US 5,917,692 AFEV Motorentechnik GmbH & Co. Kommanditgesellschaft · 1999
- Valve controller systems and methods and fuel injection systems utilizing the same60US 5,720,261 A1998
- Gate driver ASIC for an automotive starter/alternator59US 6,897,574 B2International Rectifier Corporation · 2005