F02M 51/0628
Having a stepped armature
Official title: {having a stepped armature}
F02M51/0628 (Having a stepped armature) appears on 19 US grants and 17 published applications in this corpus.
Search patents in F02M- Granted patents
- 19
- Published applications
- 17
- Assignees
- 13
- Inventors
- 48
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 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 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 5 |
| 2020 | 2 | 1 |
| 2021 | 4 | 3 |
| 2022 | 1 | 1 |
| 2023 | 3 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Valve assembly having electrical actuator with stepped armature33US 10,711,754 B2Caterpillar Inc. · 2020
- Fuel system for compression ignition engine12US 4,421,088 ALucas Industries Limited · 1983
- Fuel injection valve for an automotive vehicle10US 4,351,480 ANissan Motor Co., Ltd. · 1982
- Fuel injection nozzles7US 4,269,361 ALucas Industries Limited · 1981
- Solenoid construction6US 4,254,935 ALucas Industries Limited · 1981