F02M 31/125
Fuel
F02M31/125 (Fuel) appears on 308 US grants and 228 published applications in this corpus.
Search patents in F02M- Granted patents
- 308
- Published applications
- 228
- Assignees
- 171
- Inventors
- 652
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 12 | 0 |
| 1986 | 10 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 11 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 6 | 1 |
| 2002 | 7 | 8 |
| 2003 | 5 | 9 |
| 2004 | 6 | 11 |
| 2005 | 9 | 16 |
| 2006 | 9 | 6 |
| 2007 | 8 | 8 |
| 2008 | 4 | 9 |
| 2009 | 6 | 15 |
| 2010 | 7 | 13 |
| 2011 | 6 | 14 |
| 2012 | 13 | 11 |
| 2013 | 9 | 12 |
| 2014 | 10 | 14 |
| 2015 | 9 | 15 |
| 2016 | 3 | 7 |
| 2017 | 15 | 11 |
| 2018 | 6 | 8 |
| 2019 | 15 | 7 |
| 2020 | 7 | 5 |
| 2021 | 4 | 5 |
| 2022 | 5 | 4 |
| 2023 | 5 | 5 |
| 2024 | 5 | 3 |
| 2025 | 3 | 6 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hybrid drive and fuel vaporizer for UAV and other mobile environments18 Aug 2026US 12,709,419 B2LiquidPiston, Inc.
- Internal combustion engine7 Jul 2026US 12,674,433 B2Toyota Jidosha Kabushiki Kaisha
- Fuel gas heating system19 May 2026US 12,631,158 B2Hanwha Ocean Co., Ltd.
- Temperature control apparatus for a gaseous medium31 Mar 2026US 12,590,766 B2AVL List GmbH
- Method for diagnosing faults in the operation of a fuel heating system associated with an internal combustion engine17 Mar 2026US 12,577,920 B2Robert Bosch Limitada
- Fuel-based heating to enable mixing controlled combustion of small- molecule fuels10 Sep 2026US 2026/0266248 A1
- Fuel conditioning system18 Jun 2026US 2026/0173226 A1Airbus Operations S.L.U.
- Apparatus and method for controlling fuel filter heater of vehicle12 Mar 2026US 2026/0071600 A1Hyundai Motor Company
- Internal combustion engine26 Feb 2026US 2026/0055722 A1
- Internal combustion engine29 Jan 2026US 2026/0028956 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Device for the treatment of engine and heating fuels obtained from mineral oil or from plants116US 5,816,225 AI.A.T. Technologies Limited · 1998
- Fuel injector116US 5,915,626 ARobert Bosch GmbH · 1999
- Reversible filter element87US 5,645,718 AParker-Hannifin Corporation · 1997
- Electrically heated fuel pick-up assembly for vehicle fuel tanks80US 4,684,786 ANavistar International Corporation · 1987
- Filter assembly77US 4,502,955 ARacor Industries, Inc. · 1985