F02D 41/1482
Integrator, i.e. variable slope
Official title: {Integrator, i.e. variable slope}
F02D41/1482 (Integrator, i.e. variable slope) appears on 216 US grants and 90 published applications in this corpus.
Search patents in F02D- Granted patents
- 216
- Published applications
- 90
- Assignees
- 68
- Inventors
- 387
- Latest grant
- 10 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 18 | 0 |
| 1979 | 15 | 0 |
| 1980 | 6 | 0 |
| 1981 | 12 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 2 |
| 2002 | 2 | 2 |
| 2003 | 3 | 5 |
| 2004 | 3 | 10 |
| 2005 | 5 | 3 |
| 2006 | 12 | 6 |
| 2007 | 5 | 6 |
| 2008 | 3 | 4 |
| 2009 | 6 | 2 |
| 2010 | 4 | 1 |
| 2011 | 0 | 7 |
| 2012 | 2 | 4 |
| 2013 | 2 | 8 |
| 2014 | 3 | 3 |
| 2015 | 8 | 2 |
| 2016 | 5 | 3 |
| 2017 | 6 | 3 |
| 2018 | 3 | 5 |
| 2019 | 4 | 4 |
| 2020 | 6 | 2 |
| 2021 | 2 | 1 |
| 2022 | 0 | 4 |
| 2023 | 6 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Sensor system, and sensor system failure detecting method10 Dec 2024US 12,163,917 B2Niterra Co., Ltd.
- Engine control device23 Jul 2024US 12,044,189 B2Toyota Jidosha Kabushiki Kaisha
- Systems and methods for air-fuel ratio imbalance monitor15 Aug 2023US 11,725,603 B1Ford Global Technologies, LLC
- Electronic control method for throttle and electronic control throttle device8 Aug 2023US 11,719,171 B2Nikki Co., Ltd.
- System and method for controlling fuel supplied to an engine25 Jul 2023US 11,708,800 B2Ford Global Technologies, LLC
- Apparatus and method for lambda control of spark-ignition engines, and motor vehicle22 May 2025US 2025/0163864 A1Audi AG
- Engine control device2 May 2024US 2024/0141848 A1Toyota Jidosha Kabushiki Kaisha
- Systems and methods for air-fuel ratio imbalance monitor7 Sep 2023US 2023/0279820 A1Ford Global Technologies, LLC
- Electronic control method for throttle and electronic control throttle device29 Sep 2022US 2022/0307429 A1Nikki Co., Ltd.
- Valve timing modulation for egr balancing22 Sep 2022US 2022/0298979 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Internal combustion engine control for improved fuel efficiency208US 7,577,511 B1Tula Technology, Inc. · 2009
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Method and apparatus for monitoring and adjusting .lambda.-probe-controlled catalytic exhaust gas emission control systems of internal combustion engines114US 4,622,809 ADaimler-Benz Aktiengesellschaft · 1986
- Internal combustion engine control for improved fuel efficiency97US 8,131,447 B2Tula Technology, Inc. · 2012
- Apparatus for controlling the air-fuel ratio in an internal combustion engine68US 5,752,492 AToyota Jidosha Kabushiki Kaisha · 1998