F02M 21/0293
Safety devices
Official title: {Safety devices; Fail-safe measures}
F02M21/0293 (Safety devices) appears on 85 US grants and 118 published applications in this corpus.
Search patents in F02M- Granted patents
- 85
- Published applications
- 118
- Assignees
- 77
- Inventors
- 274
- Latest grant
- 23 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 4 |
| 2007 | 2 | 1 |
| 2008 | 1 | 2 |
| 2009 | 2 | 0 |
| 2010 | 1 | 0 |
| 2011 | 2 | 3 |
| 2012 | 0 | 4 |
| 2013 | 5 | 2 |
| 2014 | 0 | 8 |
| 2015 | 3 | 10 |
| 2016 | 8 | 7 |
| 2017 | 10 | 7 |
| 2018 | 2 | 6 |
| 2019 | 8 | 8 |
| 2020 | 3 | 4 |
| 2021 | 4 | 5 |
| 2022 | 3 | 4 |
| 2023 | 5 | 5 |
| 2024 | 5 | 5 |
| 2025 | 3 | 17 |
| 2026 | 6 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for venting a pressurized fluid used as a fuel in an engine23 Jun 2026US 12,662,971 B2Caterpillar Inc.
- System and method for recovery of redundant gaseous fuel from a gaseous fuel supply system19 May 2026US 12,631,157 B2Volvo Truck Corporation
- Fuel gas heating system19 May 2026US 12,631,158 B2Hanwha Ocean Co., Ltd.
- Nitrogen compression system for leakage test on gas pipeline used for engine and vessel including the same28 Apr 2026US 12,613,004 B2Daewoo Shipbuilding & Marine Engineering Co., Ltd.
- On-vehicle hydrogen supply apparatus17 Feb 2026US 12,553,577 B2Toyota Jidosha Kabushiki Kaisha
- Method for operating a tank unit, and tank unit for storing a gaseous fuel24 Sep 2026US 2026/0286918 A1Robert Bosch GmbH
- Gas fuel flow device and engine24 Sep 2026US 2026/0286920 A1Yanmar Holdings Co., Ltd.
- Fuel injector for direct injection of gaseous fuel27 Aug 2026US 2026/0251106 A9Phinia Delphi Luxembourg Sarl
- Fuel tank arrangement, marine vessel and method for cooling fuel comprising ammonia20 Aug 2026US 2026/0242047 A1WäRtsilä Finland Oy
- Outboard motor6 Aug 2026US 2026/0225701 A1Yamaha Hatsudoki Kabushiki Kaisha
Most cited
By later US patents
- Method and apparatus for utilizing gaseous and liquid fuels in an internal combustion engine49US 5,816,224 AWelsh Technologies, Inc. · 1998
- High pressure gaseous fuel supply system for an internal combustion engine and a method of sealing connections between components to prevent leakage of a high pressure gaseous fuel47US 7,308,889 B2Westport Power Inc. · 2007
- Crashworthy solenoid actuated valve for CNG powered vehicle41US 5,452,738 AAmcast Industrial Corporation · 1995
- Solenoid gas valve34US 8,066,255 B22011
- Crashworthy solenoid actuated valve for CNG powered vehicle32US 5,562,117 AAmcast Industrial Corporation · 1996