F02D 41/2406
Using essentially read only memories
Official title: {using essentially read only memories}
F02D41/2406 (Using essentially read only memories) appears on 3,712 US grants and 3,017 published applications in this corpus.
Search patents in F02D- Granted patents
- 3,712
- Published applications
- 3,017
- Assignees
- 543
- Inventors
- 6,104
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 5 | 0 |
| 1978 | 6 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 7 | 0 |
| 1982 | 9 | 0 |
| 1983 | 25 | 0 |
| 1984 | 30 | 0 |
| 1985 | 38 | 0 |
| 1986 | 33 | 0 |
| 1987 | 32 | 0 |
| 1988 | 53 | 0 |
| 1989 | 51 | 0 |
| 1990 | 47 | 0 |
| 1991 | 53 | 0 |
| 1992 | 41 | 0 |
| 1993 | 48 | 0 |
| 1994 | 25 | 0 |
| 1995 | 28 | 0 |
| 1996 | 36 | 0 |
| 1997 | 41 | 0 |
| 1998 | 57 | 0 |
| 1999 | 47 | 0 |
| 2000 | 62 | 0 |
| 2001 | 73 | 22 |
| 2002 | 74 | 66 |
| 2003 | 81 | 111 |
| 2004 | 101 | 108 |
| 2005 | 98 | 105 |
| 2006 | 124 | 102 |
| 2007 | 102 | 99 |
| 2008 | 83 | 127 |
| 2009 | 67 | 180 |
| 2010 | 112 | 133 |
| 2011 | 108 | 108 |
| 2012 | 85 | 123 |
| 2013 | 106 | 131 |
| 2014 | 86 | 113 |
| 2015 | 104 | 170 |
| 2016 | 155 | 203 |
| 2017 | 205 | 188 |
| 2018 | 197 | 194 |
| 2019 | 209 | 169 |
| 2020 | 187 | 139 |
| 2021 | 186 | 149 |
| 2022 | 150 | 99 |
| 2023 | 93 | 61 |
| 2024 | 72 | 47 |
| 2025 | 41 | 29 |
| 2026 | 22 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Throttle controlled intake system8 Sep 2026US 12,729,656 B2K&N Engineering, Inc.
- System and method for adaptive control of air-to-fuel ratio18 Aug 2026US 12,710,014 B2Caterpillar Inc.
- Injector valve force control11 Aug 2026US 12,704,100 B2Caterpillar Inc.
- Apparatus and method for engine control14 Jul 2026US 12,683,828 B2Vieletech Inc.
- Dual fuel engine system and method for controlling dual fuel engine system30 Jun 2026US 12,669,093 B2Cummins Power Generation Inc.
- Non-intrusive fueling event measurement for fueling systems8 Oct 2026US 2026/0309103 A1Cummins-Scania HPCR System, LLC
- Method for operating an internal combustion engine, computer program, control device for an internal combustion engine, combustion engine and method for designing an internal combustion engine20 Aug 2026US 2026/0243211 A1Rolls-Royce Solutions GmbH
- Control Device for Internal Combustion Engine20 Aug 2026US 2026/0243212 A1Hitachi Astemo, Ltd.
- Internal Combustion Engine Control Device and Internal Combustion Engine Control Method20 Aug 2026US 2026/0243213 A1Astemo, Ltd.
- System and related method for fuel injection systems13 Aug 2026US 2026/0235096 A1Caterpillar Inc.
Most cited
By later US patents
- Remote control of engine idling time242US 5,619,412 ACummins Engine Company, Inc. · 1997
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Fuel control system with calibration learning capability for motor vehicle internal combustion engine137US 4,130,095 AGeneral Motors Corporation · 1978
- Method for controlling/regulating a process in a motor vehicle and device for implementing the method117US 6,434,465 B1Robert Bosch GmbH · 2002
- Vehicle management computer113US 5,284,116 ANorth American Philips Corporation · 1994