F02D 41/0025
Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or
Official title: {Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures}
F02D41/0025 (Controlling engines characterised by use of non-liquid fuels, pluralities of fuels, or) appears on 7,407 US grants and 7,103 published applications in this corpus.
Search patents in F02D- Granted patents
- 7,407
- Published applications
- 7,103
- Assignees
- 959
- Inventors
- 9,695
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 8 | 0 |
| 1978 | 8 | 0 |
| 1979 | 14 | 0 |
| 1980 | 16 | 0 |
| 1981 | 24 | 0 |
| 1982 | 19 | 0 |
| 1983 | 28 | 0 |
| 1984 | 52 | 0 |
| 1985 | 19 | 0 |
| 1986 | 16 | 0 |
| 1987 | 22 | 0 |
| 1988 | 24 | 0 |
| 1989 | 23 | 0 |
| 1990 | 28 | 0 |
| 1991 | 41 | 0 |
| 1992 | 33 | 0 |
| 1993 | 73 | 0 |
| 1994 | 51 | 0 |
| 1995 | 49 | 0 |
| 1996 | 73 | 0 |
| 1997 | 73 | 0 |
| 1998 | 78 | 0 |
| 1999 | 82 | 0 |
| 2000 | 122 | 0 |
| 2001 | 135 | 43 |
| 2002 | 112 | 131 |
| 2003 | 135 | 160 |
| 2004 | 160 | 175 |
| 2005 | 143 | 188 |
| 2006 | 200 | 173 |
| 2007 | 172 | 210 |
| 2008 | 164 | 240 |
| 2009 | 126 | 333 |
| 2010 | 217 | 291 |
| 2011 | 220 | 345 |
| 2012 | 222 | 307 |
| 2013 | 263 | 377 |
| 2014 | 286 | 422 |
| 2015 | 319 | 518 |
| 2016 | 442 | 489 |
| 2017 | 480 | 413 |
| 2018 | 439 | 449 |
| 2019 | 440 | 462 |
| 2020 | 459 | 371 |
| 2021 | 431 | 231 |
| 2022 | 260 | 211 |
| 2023 | 232 | 161 |
| 2024 | 165 | 124 |
| 2025 | 135 | 157 |
| 2026 | 70 | 122 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Engine device6 Oct 2026US 12,753,713 B2Yanmar Holdings Co., Ltd.
- Engine control system, method for controlling a dual fuel engine, and non-transitory computer-readable medium6 Oct 2026US 12,753,726 B2Cummins Power Generation Inc.
- Fuel tank processing apparatus6 Oct 2026US 12,753,727 B2Subaru Corporation
- Purge valve control method and control device of evaporated fuel processing device6 Oct 2026US 12,753,728 B2Nissan Motor Co., Ltd.
- Method to enhance the performance of a heavy-duty diesel-H2 dual-fuel engine through engine system optimization22 Sep 2026US 12,742,429 B2Saudi Arabian Oil Company
- Multi-fuel engine system and method for controlling same8 Oct 2026US 2026/0309102 A1Hd Hyundai Heavy Industries Co., Ltd.
- Method for emission management for a hydrogen vehicle1 Oct 2026US 2026/0298164 A1Phinia Delphi Luxembourg Sarl
- Exhaust gas recirculation system, engine system, control method of exhaust gas recirculation system, and control program1 Oct 2026US 2026/0298182 A1Yanmar Holdings Co., Ltd.
- Control device, gas engine, control method, and program24 Sep 2026US 2026/0286915 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Control device and method for internal combustion engine17 Sep 2026US 2026/0275923 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
Most cited
By later US patents
- Methods and apparatus for operation of multiple fuel engines199US 7,222,015 B2Engine Control Technology, LLC · 2007
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Dual fuel system for an internal combustion engine167US 9,212,643 B2Delia Ltd. · 2015
- Control system for two cycle direct injection engine and the method thereof165US 6,158,411 AFuji Jukogyo Kabushiki Kaisha · 2000