F02M 31/045
Fuel-air mixture
Official title: {Fuel-air mixture}
F02M31/045 (Fuel-air mixture) appears on 35 US grants and 20 published applications in this corpus.
Search patents in F02M- Granted patents
- 35
- Published applications
- 20
- Assignees
- 26
- Inventors
- 69
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 4 |
| 2008 | 0 | 0 |
| 2009 | 3 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 2 |
| 2021 | 4 | 1 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for controlling a fuel supply system20 Jan 2026US 12,529,345 B2Volvo Truck Corporation
- Apparatus and method to improve vaporization of fuel in internal combustion engines20 Sep 2022US 11,448,166 B2Watt If Consulting and Developing LLC
- Gas engine power generation system30 Aug 2022US 11,428,194 B2LG Electronics Inc.
- Apparatus and method to improve vaporization of fuel in internal combustion engines28 Dec 2021US 11,208,973 B2Watt If Consulting and Developing LLC
- Engine intake apparatus and method21 Sep 2021US 11,125,191 B2Oval Engine LTD
- Fuel reforming system of diesel vehicle21 May 2026US 2026/0139647 A1Hyundai Motor Company
- Engine device18 Sep 2025US 2025/0290471 A1Yanmar Holdings Co., Ltd.
- System and method for controlling a fuel supply system1 May 2025US 2025/0137411 A1Volvo Truck Corporation
- Apparatus and method to improve vaporization of fuel in internal combustion engines24 Mar 2022US 2022/0090564 A1Watt If Consulting and Developing LLC
- Gas engine power generation system1 Apr 2021US 2021/0095621 A1LG Electronics Inc.
Most cited
By later US patents
- Internal combustion engine and method of operating it33US 4,117,813 AYamaha Hatsudoki Kabushiki Kaisha · 1978
- Carburetor idling system21US 3,944,634 A1976
- Injector-ignition for an internal combustion engine18US 7,546,826 B2Transonic Combustion, Inc. · 2009
- Carburetor for stratified internal combustion engine15US 4,086,885 ANippon Soken, Inc. · 1978
- Vaporization system14US 5,782,225 A1998