F02M 37/0023
Valves in the fuel supply and return system
Official title: {Valves in the fuel supply and return system}
F02M37/0023 (Valves in the fuel supply and return system) appears on 669 US grants and 549 published applications in this corpus.
Search patents in F02M- Granted patents
- 669
- Published applications
- 549
- Assignees
- 284
- Inventors
- 1,397
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 8 | 0 |
| 1982 | 10 | 0 |
| 1983 | 11 | 0 |
| 1984 | 9 | 0 |
| 1985 | 11 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 8 | 0 |
| 1993 | 12 | 0 |
| 1994 | 9 | 0 |
| 1995 | 12 | 0 |
| 1996 | 11 | 0 |
| 1997 | 8 | 0 |
| 1998 | 12 | 0 |
| 1999 | 10 | 0 |
| 2000 | 4 | 0 |
| 2001 | 8 | 5 |
| 2002 | 13 | 20 |
| 2003 | 16 | 15 |
| 2004 | 16 | 21 |
| 2005 | 17 | 16 |
| 2006 | 18 | 23 |
| 2007 | 24 | 22 |
| 2008 | 14 | 23 |
| 2009 | 17 | 37 |
| 2010 | 20 | 18 |
| 2011 | 16 | 34 |
| 2012 | 15 | 17 |
| 2013 | 15 | 24 |
| 2014 | 14 | 20 |
| 2015 | 22 | 27 |
| 2016 | 19 | 30 |
| 2017 | 17 | 42 |
| 2018 | 32 | 19 |
| 2019 | 34 | 36 |
| 2020 | 28 | 23 |
| 2021 | 29 | 18 |
| 2022 | 21 | 15 |
| 2023 | 19 | 15 |
| 2024 | 12 | 7 |
| 2025 | 6 | 7 |
| 2026 | 1 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel reforming system for vehicle with engine mounted thereon14 Apr 2026US 12,601,318 B2Mazda Motor Corporation
- Device for direct injection of a gaseous fuel30 Dec 2025US 12,510,042 B2Liebherr-Components Deggendorf GmbH
- Fuel system30 Dec 2025US 12,510,046 B2Maersk A/S
- Inlet metering valve block30 Dec 2025US 12,510,047 B1Transportation IP Holdings, LLC
- Dual fuel system having overflow buffer for hastening fuel switchover15 Jul 2025US 12,359,632 B1Caterpillar Inc.
- Pressure reduction valve20 Aug 2026US 2026/0244227 A1Aisan Kogyo Kabushiki Kaisha
- Fuel filter bypass system and bypass valve device6 Aug 2026US 2026/0226875 A1
- Systems and methods for fluid purging in a fuel delivery system9 Jul 2026US 2026/0194031 A1Woodward, Inc.
- High Pressure Fuel Pump With Configuration To Mitigate Cavitation9 Jul 2026US 2026/0194033 A1
- Fuel system2 Jul 2026US 2026/0185499 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
Most cited
By later US patents
- Fuel supply apparatus for an internal combustion engine128US 6,711,893 B2ExxonMobil Research and Engineering Company · 2004
- Fuel vapor extraction system83US 6,189,516 B1Ford Global Technologies, LLC · 2001
- Pressure-responsive fuel delivery system77US 4,926,829 AWalbro Corporation · 1990
- Fuel delivery system with outlet pressure regulation74US 5,195,494 AWalbro Corporation · 1993
- Multiway valve arrangement71US 7,367,352 B2VOSS Automotive GmbH · 2008