F02D 19/00
Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels
Official title: Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures (the non-fuel substances being gaseous F02D21/00)
F02D19/00 (Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels) appears on 3,647 US grants and 3,672 published applications in this corpus.
Search patents in F02D- Granted patents
- 3,647
- Published applications
- 3,672
- Assignees
- 962
- Inventors
- 5,690
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 10 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 12 | 0 |
| 1982 | 13 | 0 |
| 1983 | 34 | 0 |
| 1984 | 21 | 0 |
| 1985 | 32 | 0 |
| 1986 | 16 | 0 |
| 1987 | 18 | 0 |
| 1988 | 9 | 0 |
| 1989 | 19 | 0 |
| 1990 | 28 | 0 |
| 1991 | 29 | 0 |
| 1992 | 41 | 0 |
| 1993 | 44 | 0 |
| 1994 | 40 | 0 |
| 1995 | 41 | 0 |
| 1996 | 43 | 0 |
| 1997 | 31 | 0 |
| 1998 | 40 | 0 |
| 1999 | 43 | 0 |
| 2000 | 41 | 0 |
| 2001 | 48 | 6 |
| 2002 | 38 | 50 |
| 2003 | 46 | 56 |
| 2004 | 50 | 80 |
| 2005 | 46 | 64 |
| 2006 | 72 | 74 |
| 2007 | 68 | 114 |
| 2008 | 85 | 134 |
| 2009 | 64 | 174 |
| 2010 | 119 | 189 |
| 2011 | 119 | 182 |
| 2012 | 123 | 168 |
| 2013 | 128 | 201 |
| 2014 | 143 | 270 |
| 2015 | 183 | 246 |
| 2016 | 195 | 239 |
| 2017 | 207 | 180 |
| 2018 | 177 | 173 |
| 2019 | 178 | 210 |
| 2020 | 183 | 142 |
| 2021 | 184 | 105 |
| 2022 | 116 | 101 |
| 2023 | 127 | 110 |
| 2024 | 130 | 127 |
| 2025 | 128 | 165 |
| 2026 | 67 | 112 |
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.
- Controller for a fuel supply system29 Sep 2026US 12,747,709 B2Toyota Jidosha Kabushiki Kaisha
- Injectors, methods, and systems for dual fuel combustion22 Sep 2026US 12,742,428 B2
- Hydrogen mixed-combustion electronic control device and power generation system using same15 Sep 2026US 12,736,014 B2Hitachi, Ltd.
- Systems and methods for controlling cylinder combustion in a dual fuel engine using in-cylinder pressure sensing8 Sep 2026US 12,729,654 B2Caterpillar Inc.
- Multi-fuel engine system and method for controlling same8 Oct 2026US 2026/0309102 A1Hd Hyundai Heavy Industries Co., Ltd.
- Fuel supply system, and vehicle1 Oct 2026US 2026/0298160 A1Isuzu Motors Limited
- Controller and control method1 Oct 2026US 2026/0298166 A1Toyota Jidosha Kabushiki Kaisha
- Calibration system and method for fuel injection calibration24 Sep 2026US 2026/0286912 A1Cummins Power Generation Inc.
- Multi-stage emission system for large displacement compression ignition non-road diesel, diesel-natural gas or alternative fuel mixture generator systems for emergency and non-emergency stationary power applications17 Sep 2026US 2026/0275892 A1Bluefin ESI, Inc.
Most cited
By later US patents
- Bi-fuel control system and retrofit assembly for diesel engines231US 6,543,395 B2Gas Technologies LLC · 2003
- Method and apparatus for operating a dual fuel internal combustion engine226US 7,627,416 B2Westport Power Inc. · 2009
- Methods and apparatus for operation of multiple fuel engines199US 7,222,015 B2Engine Control Technology, LLC · 2007
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- System comprising duel-fuel and after treatment for heavy-heavy duty diesel (HHDD) engines180US 10,287,943 B1Clean Power Technologies, LLC · 2019