F02D 2041/2034
Control of the current gradient
Official title: {Control of the current gradient}
F02D2041/2034 (Control of the current gradient) appears on 103 US grants and 71 published applications in this corpus.
Search patents in F02D- Granted patents
- 103
- Published applications
- 71
- Assignees
- 60
- Inventors
- 222
- Latest grant
- 26 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 4 |
| 2003 | 5 | 4 |
| 2004 | 1 | 2 |
| 2005 | 4 | 4 |
| 2006 | 3 | 2 |
| 2007 | 2 | 0 |
| 2008 | 3 | 4 |
| 2009 | 2 | 2 |
| 2010 | 3 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 7 |
| 2016 | 4 | 4 |
| 2017 | 5 | 10 |
| 2018 | 7 | 8 |
| 2019 | 10 | 3 |
| 2020 | 6 | 2 |
| 2021 | 5 | 4 |
| 2022 | 6 | 2 |
| 2023 | 4 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Control device for high-pressure fuel pump26 Dec 2023US 11,852,093 B2Hitachi Astemo, Ltd.
- Reduced energy waveform for energizing solenoid actuator in fuel injector valve24 Oct 2023US 11,795,886 B2Caterpillar Inc.
- Methods and systems for fuel injector control13 Jun 2023US 11,674,466 B2Transportation IP Holdings, LLC
- Injection control device13 Jun 2023US 11,674,467 B2Denso Corporation
- Injection control device20 Sep 2022US 11,448,154 B2Denso Corporation
- Reduced energy waveform for energizing solenoid actuator in fuel injector valve15 Jun 2023US 2023/0184189 A1Caterpillar Inc.
- Control Device for High-Pressure Fuel Pump9 Feb 2023US 2023/0038318 A1Hitachi Astemo, Ltd.
- Injection control device20 Jan 2022US 2022/0016658 A1Denso Corporation
- Injection control device20 Jan 2022US 2022/0018301 A1Denso Corporation
- Methods and systems for fuel injector control30 Dec 2021US 2021/0404402 A1Transportation IP Holdings, LLC
Most cited
By later US patents
- Valve controller systems and methods and fuel injection systems utilizing the same76US 5,954,030 A1999
- Valve controller systems and methods and fuel injection systems utilizing the same60US 5,720,261 A1998
- Piezoelectric fuel injection system with rate shape control and method of controlling same53US 6,912,998 B1Cummins Inc. · 2005
- Apparatus for controlling the operating current of electromagnetic devices36US 4,180,026 ARobert Bosch GmbH · 1979
- Circuit for piloting an inductive load, particularly for controlling the electro-injectors of a diesel engine32US 4,950,974 AMarelli Autronica S.p.A. · 1990