F02M 63/0054
Check valves
Official title: {Check valves (F02M59/462, F02M59/464 take precedence)}
F02M63/0054 (Check valves) appears on 86 US grants and 96 published applications in this corpus.
Search patents in F02M- Granted patents
- 86
- Published applications
- 96
- Assignees
- 55
- Inventors
- 253
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 4 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 3 |
| 2006 | 2 | 2 |
| 2007 | 1 | 2 |
| 2008 | 3 | 3 |
| 2009 | 0 | 3 |
| 2010 | 2 | 3 |
| 2011 | 1 | 6 |
| 2012 | 3 | 1 |
| 2013 | 0 | 8 |
| 2014 | 3 | 6 |
| 2015 | 1 | 6 |
| 2016 | 7 | 5 |
| 2017 | 4 | 6 |
| 2018 | 6 | 7 |
| 2019 | 3 | 4 |
| 2020 | 9 | 10 |
| 2021 | 4 | 2 |
| 2022 | 12 | 8 |
| 2023 | 4 | 0 |
| 2024 | 1 | 1 |
| 2025 | 2 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for at-cylinder fuel switching27 Jan 2026US 12,535,041 B2Caterpillar Inc.
- Injection control valve in fuel injector configured for pressure relief17 Jun 2025US 12,331,708 B2Caterpillar Inc.
- Fuel injector, needle seal, and fuel injector system10 Jun 2025US 12,326,128 B2Cummins Inc.
- Fuel injector control system and method3 Dec 2024US 12,158,128 B1Caterpillar Inc.
- Fuel-actuated fuel injector having cooling fuel circuit and method12 Dec 2023US 11,840,993 B1Caterpillar Inc.
- Fuel injector for dual fuel applications having non-return valve for leakage control26 Mar 2026US 2026/0085649 A1Caterpillar Inc.
- Systems and methods for at-cylinder fuel switching5 Jun 2025US 2025/0179970 A1Caterpillar Inc.
- Injection control valve in fuel injector configured for pressure relief24 Apr 2025US 2025/0129760 A1Caterpillar Inc.
- Injector for injecting fuel13 Feb 2025US 2025/0052215 A1Liebherr-Components Deggendorf GmbH
- Fuel injector, needle seal, and fuel injector system13 Feb 2025US 2025/0052219 A1Cummins Inc.
Most cited
By later US patents
- Pressure control in low static leak fuel system83US 8,291,889 B2Caterpillar Inc. · 2012
- Method and systems for a leakage passageway of a fuel injector47US 9,234,486 B2General Electric Company · 2016
- Safety valve for fuel injection apparatus32US 5,295,469 ANippondenso Co., Ltd. · 1994
- Rate shaping control valve for fuel injection nozzle26US 5,505,384 ACaterpillar Inc. · 1996
- High-pressure fuel pump21US 7,152,583 B2Hitachi Car Engineering Co., Ltd. · 2006