F02M 31/16
Other apparatus for heating fuel
F02M31/16 (Other apparatus for heating fuel) appears on 744 US grants and 381 published applications in this corpus.
Search patents in F02M- Granted patents
- 744
- Published applications
- 381
- Assignees
- 274
- Inventors
- 1,186
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 17 | 0 |
| 1978 | 21 | 0 |
| 1979 | 15 | 0 |
| 1980 | 22 | 0 |
| 1981 | 17 | 0 |
| 1982 | 38 | 0 |
| 1983 | 38 | 0 |
| 1984 | 34 | 0 |
| 1985 | 35 | 0 |
| 1986 | 18 | 0 |
| 1987 | 26 | 0 |
| 1988 | 12 | 0 |
| 1989 | 17 | 0 |
| 1990 | 12 | 0 |
| 1991 | 14 | 0 |
| 1992 | 14 | 0 |
| 1993 | 13 | 0 |
| 1994 | 8 | 0 |
| 1995 | 10 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 13 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 14 | 1 |
| 2002 | 12 | 7 |
| 2003 | 4 | 13 |
| 2004 | 12 | 14 |
| 2005 | 19 | 28 |
| 2006 | 12 | 12 |
| 2007 | 7 | 14 |
| 2008 | 13 | 17 |
| 2009 | 7 | 19 |
| 2010 | 8 | 22 |
| 2011 | 17 | 32 |
| 2012 | 16 | 21 |
| 2013 | 22 | 21 |
| 2014 | 14 | 12 |
| 2015 | 13 | 18 |
| 2016 | 6 | 16 |
| 2017 | 17 | 25 |
| 2018 | 10 | 13 |
| 2019 | 17 | 17 |
| 2020 | 15 | 12 |
| 2021 | 10 | 9 |
| 2022 | 6 | 5 |
| 2023 | 14 | 12 |
| 2024 | 10 | 7 |
| 2025 | 4 | 8 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hybrid drive and fuel vaporizer for UAV and other mobile environments18 Aug 2026US 12,709,419 B2LiquidPiston, Inc.
- Reconfigurable surgical frame and method for use thereof26 May 2026US 12,637,993 B2Warsaw Orthopedic, Inc.
- Gaseous fuel supply system for a clean combustion engine of a vehicle21 Apr 2026US 12,607,159 B2Volvo Truck Corporation
- System and method for generating electricity using pyrolysis of plastics10 Mar 2026US 12,573,651 B2Energy Incorporated
- Propane fuel system thermal management systems and methods30 Dec 2025US 12,510,044 B2Cummins Inc.
- System and method for generating electricity using pyrolysis of plastics8 Oct 2026US 2026/0312100 A1
- Fuel-based heating to enable mixing controlled combustion of small- molecule fuels10 Sep 2026US 2026/0266248 A1
- Thermal choke, autostart generator system, and method of use thereof18 Jun 2026US 2026/0168466 A1The Dewey Electronics Corporation
- Engine system, fuel vaporization system, and method for vaporizing a secondary liquid fuel7 May 2026US 2026/0126022 A1Cummins Power Generation Inc.
- Apparatus and method for controlling fuel filter heater of vehicle12 Mar 2026US 2026/0071600 A1Hyundai Motor Company
Most cited
By later US patents
- Fuel-conditioning skid147US 7,442,239 B2Ingersoll-Rand Energy Systems Corporation · 2008
- Dual fuel supply system and method for an internal combustion engine116US 4,402,296 A1983
- Fuel modification method and apparatus for reduction of pollutants emitted from internal combustion engines99US 5,357,908 AEngelhard Corporation · 1994
- Fuel pre-heat device80US 4,436,075 A1984
- Plural fuel system for internal combustion engine69US 5,546,908 A1996