F02M 51/0617
Having two or more electromagnets
Official title: {having two or more electromagnets}
F02M51/0617 (Having two or more electromagnets) appears on 95 US grants and 72 published applications in this corpus.
Search patents in F02M- Granted patents
- 95
- Published applications
- 72
- Assignees
- 50
- Inventors
- 209
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 5 |
| 2003 | 4 | 2 |
| 2004 | 5 | 6 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 5 |
| 2008 | 1 | 3 |
| 2009 | 2 | 2 |
| 2010 | 1 | 2 |
| 2011 | 2 | 2 |
| 2012 | 0 | 5 |
| 2013 | 2 | 0 |
| 2014 | 1 | 8 |
| 2015 | 2 | 5 |
| 2016 | 6 | 3 |
| 2017 | 6 | 2 |
| 2018 | 2 | 4 |
| 2019 | 2 | 1 |
| 2020 | 3 | 2 |
| 2021 | 3 | 3 |
| 2022 | 1 | 0 |
| 2023 | 2 | 1 |
| 2024 | 2 | 1 |
| 2025 | 3 | 8 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve arrival time detection in fuel system having dual solenoid operated valves3 Mar 2026US 12,565,870 B2Caterpillar Inc.
- Fuel injection system for hydrogen gas11 Nov 2025US 12,467,423 B2Phinia Delphi Luxembourg Sarl
- Fuel injector4 Nov 2025US 12,460,605 B2Phinia Delphi Luxembourg Sarl
- Force modification of passive valve spools for control of nozzles28 Oct 2025US 12,454,915 B2Hamilton Sundstrand Corporation
- Permanent magnet-electromagnet synergistic coupling-based high-speed solenoid valve with high dynamic response and low rebound21 May 2024US 11,988,180 B2Harbin Engineering University
- Fuel injector of an internal combustion engine and internal combustion engine25 Dec 2025US 2025/0389244 A1MAN Energy Solutions SE
- Fuel injector28 Aug 2025US 2025/0270972 A1Phinia Delphi Luxembourg Sarl
- Fuel injection system for hydrogen gas8 May 2025US 2025/0146455 A1Phinia Delphi Luxembourg Sarl
- Fuel injector8 May 2025US 2025/0146456 A1Phinia Delphi Luxembourg Sarl
- Fuel injector1 May 2025US 2025/0137421 A1Phinia Delphi Luxembourg Sarl
Most cited
By later US patents
- Multi-stage fuel metering valve assembly81US 4,342,443 AColt Industries Operating Corp. · 1982
- Exhaust gas purification system for an internal combustion engine78US 5,174,111 AToyota Jidosha Kabushiki Kaisha · 1992
- Electromaagnetic high-pressure injection valve75US 5,127,585 ASiemens Aktiengesellschaft · 1992
- Combined fuel injection and intake valve for electronic fuel injection engine systems57US 4,020,803 AThe Bendix Corporation · 1977
- Force balanced electronically controlled fuel injector44US 5,419,492 ACummins Engine Company, Inc. · 1995