F02D 41/0097
Electrical control of supply of combustible mixture or its constituents: using means
Official title: {using means for generating speed signals}
F02D41/0097 (Electrical control of supply of combustible mixture or its constituents: using means) appears on 489 US grants and 413 published applications in this corpus.
Search patents in F02D- Granted patents
- 489
- Published applications
- 413
- Assignees
- 194
- Inventors
- 1,110
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 6 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 12 | 0 |
| 1999 | 7 | 0 |
| 2000 | 6 | 0 |
| 2001 | 11 | 3 |
| 2002 | 11 | 5 |
| 2003 | 8 | 7 |
| 2004 | 5 | 7 |
| 2005 | 11 | 10 |
| 2006 | 10 | 12 |
| 2007 | 8 | 12 |
| 2008 | 9 | 14 |
| 2009 | 12 | 21 |
| 2010 | 17 | 10 |
| 2011 | 12 | 14 |
| 2012 | 12 | 17 |
| 2013 | 14 | 24 |
| 2014 | 14 | 18 |
| 2015 | 14 | 22 |
| 2016 | 25 | 34 |
| 2017 | 28 | 36 |
| 2018 | 28 | 20 |
| 2019 | 32 | 26 |
| 2020 | 23 | 20 |
| 2021 | 26 | 25 |
| 2022 | 26 | 20 |
| 2023 | 17 | 10 |
| 2024 | 12 | 9 |
| 2025 | 9 | 8 |
| 2026 | 4 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Camshaft tone wheel, system, and method for determining engine speed and position26 May 2026US 12,637,989 B2Cummins Inc.
- Torque estimation apparatus for internal combustion engine3 Mar 2026US 12,565,863 B2Mitsubishi Electric Corporation
- Internal combustion engine misfire detecting device and misfire detecting method13 Jan 2026US 12,523,170 B2Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Controller for internal combustion engine6 Jan 2026US 12,516,642 B2Mitsubishi Electric Corporation
- Detection method for detecting a speed sensing anomaly of an internal combustion engine and device for detecting the speed sensing anomaly30 Dec 2025US 12,510,038 B2Caterpillar Energy Solutions GmbH
- Camshaft tone wheel, system, and method for determining engine speed and position3 Sep 2026US 2026/0258760 A1Cummins Inc.
- Determination of the direction of rotation of a crankshaft from a signal generated by a magnetic crankshaft sensor27 Aug 2026US 2026/0251100 A1Schaeffler Technologies AG & Co. KG
- Engine diagnosis system and engine diagnosis method20 Aug 2026US 2026/0243628 A1Komatsu Ltd.
- Mixed-combustion electronic control device6 Aug 2026US 2026/0226867 A1Hitachi, Ltd.
- Engine ignition flag system25 Jun 2026US 2026/0177014 A1Oshkosh Corporation
Most cited
By later US patents
- Method and system for detecting the misfire of an internal combustion engine utilizing engine torque nonuniformity93US 5,278,760 AHitachi America, Ltd. · 1994
- Adaptation method for correcting tolerances of a transducer wheel86US 5,789,658 ASiemens Aktiengesellschaft · 1998
- Engine control unit63US 5,598,825 ATranscom Gas Technologies Pty Ltd. · 1997
- Method and apparatus for engine cylinder balancing using sensed engine speed50US 6,021,758 ACummins Engine Company, Inc. · 2000
- Engine speed governor having improved low idle speed stability40US 6,202,629 B12001