F02D 41/1483
Proportional component
Official title: {Proportional component}
F02D41/1483 (Proportional component) appears on 135 US grants and 50 published applications in this corpus.
Search patents in F02D- Granted patents
- 135
- Published applications
- 50
- Assignees
- 58
- Inventors
- 267
- Latest grant
- 10 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 2 |
| 2004 | 1 | 0 |
| 2005 | 4 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 3 | 3 |
| 2010 | 1 | 0 |
| 2011 | 1 | 5 |
| 2012 | 1 | 3 |
| 2013 | 3 | 3 |
| 2014 | 1 | 2 |
| 2015 | 3 | 2 |
| 2016 | 4 | 2 |
| 2017 | 4 | 2 |
| 2018 | 3 | 4 |
| 2019 | 3 | 5 |
| 2020 | 6 | 2 |
| 2021 | 1 | 0 |
| 2022 | 0 | 4 |
| 2023 | 6 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 2 |
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.
- 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
- Compression ratio methods and systems for particulate filter regeneration28 Mar 2023US 11,614,042 B1GM Global Technology Operations LLC
- Control circuitry of internal combustion engine and motorcycle25 Sep 2025US 2025/0297583 A1Kawasaki Motors, Ltd.
- Apparatus and method for lambda control of spark-ignition engines, and motor vehicle22 May 2025US 2025/0163864 A1Audi AG
- 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
- Apparatus for controlling the air-fuel mixture ratio of internal combustion engine51US 4,029,061 ANissan Motor Co., Ltd. · 1977
- Air/fuel ratio control apparatus49US 5,690,086 ANissan Motor Co., Ltd. · 1997
- Method of learn-controlling air-fuel ratio for internal combustion engine39US 4,539,958 AToyota Jidosha Kabushiki Kaisha · 1985
- Air-fuel ratio control method and apparatus for an internal combustion engine37US 4,475,517 AToyota Jidosha Kabushiki Kaisha · 1984
- Optimization of closed-loop and post O2 fuel control by measuring catalyst oxygen storage capacity35US 5,848,528 ASiemens Automotive Corporation · 1998