F02D 19/0644
The gaseous fuel being hydrogen, ammonia or carbon monoxide
Official title: {the gaseous fuel being hydrogen, ammonia or carbon monoxide}
F02D19/0644 (The gaseous fuel being hydrogen, ammonia or carbon monoxide) appears on 326 US grants and 453 published applications in this corpus.
Search patents in F02D- Granted patents
- 326
- Published applications
- 453
- Assignees
- 181
- Inventors
- 767
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 4 |
| 2003 | 8 | 9 |
| 2004 | 4 | 6 |
| 2005 | 4 | 7 |
| 2006 | 5 | 10 |
| 2007 | 12 | 15 |
| 2008 | 11 | 19 |
| 2009 | 10 | 15 |
| 2010 | 10 | 19 |
| 2011 | 6 | 27 |
| 2012 | 14 | 14 |
| 2013 | 12 | 18 |
| 2014 | 11 | 9 |
| 2015 | 11 | 13 |
| 2016 | 11 | 10 |
| 2017 | 9 | 14 |
| 2018 | 6 | 8 |
| 2019 | 12 | 24 |
| 2020 | 14 | 8 |
| 2021 | 13 | 10 |
| 2022 | 8 | 17 |
| 2023 | 29 | 42 |
| 2024 | 32 | 36 |
| 2025 | 37 | 60 |
| 2026 | 17 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- System and method of adding gaseous oxygen additive derived from an oxygen concentrator to diesel fuel to improve combustion21 Jul 2026US 12,687,143 B2H2Diesel, Inc.
- Method for reducing emissions from a hydrogen combustion engine2 Jun 2026US 12,644,403 B2Hyundai Motor Company
- Multi-fuel engine system and method for controlling same8 Oct 2026US 2026/0309102 A1Hd Hyundai Heavy Industries Co., Ltd.
- 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
- Method and Apparatus for Non-Fossil Fuel Internal Combustion Engine27 Aug 2026US 2026/0251112 A1MayMaan Research, LLC
- Fuel for a compression engine20 Aug 2026US 2026/0243206 A1Eurenco France SAS
Most cited
By later US patents
- Reformed natural gas for powering an internal combustion engine177US 6,508,209 B12003
- Combustion enhancement system and method87US 6,745,744 B22004
- Hydrogen enriched natural gas as a motor fuel with variable air fuel ratio and fuel mixture ratio control79US 5,787,864 AUniversity of Central Florida · 1998
- Octane enhanced natural gas for internal combustion engine70US 6,397,790 B12002
- Control system and method for a bi-fuel engine69US 6,543,423 B2Ford Global Technologies, LLC · 2003