F02D 19/0639
Characterised by the type of fuels
Official title: {characterised by the type of fuels}
F02D19/0639 (Characterised by the type of fuels) appears on 1,446 US grants and 1,639 published applications in this corpus.
Search patents in F02D- Granted patents
- 1,446
- Published applications
- 1,639
- Assignees
- 519
- Inventors
- 2,597
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 16 | 0 |
| 1984 | 3 | 0 |
| 1985 | 12 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 9 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 10 | 0 |
| 1996 | 13 | 0 |
| 1997 | 7 | 0 |
| 1998 | 15 | 0 |
| 1999 | 4 | 0 |
| 2000 | 13 | 0 |
| 2001 | 15 | 2 |
| 2002 | 13 | 22 |
| 2003 | 21 | 29 |
| 2004 | 19 | 24 |
| 2005 | 19 | 25 |
| 2006 | 20 | 31 |
| 2007 | 25 | 45 |
| 2008 | 33 | 48 |
| 2009 | 33 | 69 |
| 2010 | 44 | 72 |
| 2011 | 41 | 87 |
| 2012 | 47 | 69 |
| 2013 | 50 | 102 |
| 2014 | 54 | 115 |
| 2015 | 95 | 122 |
| 2016 | 84 | 91 |
| 2017 | 83 | 81 |
| 2018 | 62 | 62 |
| 2019 | 79 | 94 |
| 2020 | 66 | 52 |
| 2021 | 75 | 46 |
| 2022 | 50 | 49 |
| 2023 | 74 | 73 |
| 2024 | 81 | 67 |
| 2025 | 74 | 97 |
| 2026 | 32 | 65 |
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
- Hydrogen mixed-combustion electronic control device and power generation system using same15 Sep 2026US 12,736,014 B2Hitachi, Ltd.
- Dual fuel selector switch8 Sep 2026US 12,729,655 B2Champion Power Equipment, Inc.
- Dual fuel selector switch1 Sep 2026US 12,723,549 B2Champion Power Equipment, Inc.
- Multi-fuel engine system and method for controlling same8 Oct 2026US 2026/0309102 A1Hd Hyundai Heavy Industries Co., Ltd.
- 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.
- Control device and method for internal combustion engine17 Sep 2026US 2026/0275923 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Improvements relating to internal combustion engines3 Sep 2026US 2026/0258758 A1Commonwealth Scientific and Industrial Research Organisation
- Dual fuel injector, design method therefor, and injection control method therefor27 Aug 2026US 2026/0251096 A1Weichai Power Co., Ltd.
Most cited
By later US patents
- 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
- Reformed natural gas for powering an internal combustion engine177US 6,508,209 B12003
- Dual fuel supply system for a direct-injection system of a diesel engine with on-board mixing169US 8,973,560 B2Dgc Industries Pty Ltd · 2015