F02P 3/0407
Opening or closing the primary coil circuit with electronic switching means
Official title: {Opening or closing the primary coil circuit with electronic switching means (F02P3/045 - F02P3/055 take precedence)}
F02P3/0407 (Opening or closing the primary coil circuit with electronic switching means) appears on 358 US grants and 305 published applications in this corpus.
Search patents in F02P- Granted patents
- 358
- Published applications
- 305
- Assignees
- 133
- Inventors
- 562
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 8 | 0 |
| 2001 | 5 | 0 |
| 2002 | 4 | 5 |
| 2003 | 9 | 11 |
| 2004 | 7 | 7 |
| 2005 | 4 | 4 |
| 2006 | 6 | 7 |
| 2007 | 3 | 4 |
| 2008 | 7 | 10 |
| 2009 | 4 | 7 |
| 2010 | 5 | 8 |
| 2011 | 4 | 7 |
| 2012 | 5 | 9 |
| 2013 | 8 | 14 |
| 2014 | 3 | 11 |
| 2015 | 10 | 20 |
| 2016 | 21 | 31 |
| 2017 | 27 | 28 |
| 2018 | 30 | 31 |
| 2019 | 29 | 23 |
| 2020 | 27 | 12 |
| 2021 | 20 | 18 |
| 2022 | 17 | 20 |
| 2023 | 16 | 9 |
| 2024 | 11 | 3 |
| 2025 | 3 | 3 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ignition device16 Sep 2025US 12,416,281 B2Diamond&Zebra Electric Mfg. Co., Ltd.
- Method and apparatus to control an ignition system16 Sep 2025US 12,416,282 B2BorgWarner Luxembourg Automotive Systems SA
- Control device for internal combustion engine6 May 2025US 12,292,023 B2Hitachi Astemo, Ltd.
- Ignition system and method controlling spark ignited combustion engines24 Dec 2024US 12,173,678 B2Sem AB
- Ignition coil for internal combustion engine12 Nov 2024US 12,142,417 B2Denso Corporation
- Ignition method10 Sep 2026US 2026/0266254 A1Save the Planet Co., Ltd.
- Load control device, igniter, engine ignition device, and vehicle16 Apr 2026US 2026/0104027 A1Rohm Co., Ltd.
- Ignition coil and ignition device26 Feb 2026US 2026/0058054 A1Diamond&Zebra Electric Mfg. Co., Ltd.
- Ignition coil and ignition device20 Nov 2025US 2025/0354533 A1Diamond&Zebra Electric Mfg. Co., Ltd.
- Engine combustion control system26 Jun 2025US 2025/0207552 A1Mazda Motor Corporation
Most cited
By later US patents
- Power supply apparatus and power supply method52US 7,085,123 B2Luxon Energy Devices Corporation · 2006
- Low inductance high energy inductive ignition system41US 6,142,130 A2000
- Vaporized fuel injection system29US 5,394,838 AAmerican Fuel Systems, Inc. · 1995
- Dual-mode ignition system utilizing traveling spark ignitor28US 6,553,981 B1Knite, Inc. · 2003
- Ignition apparatus for internal combustion engine27US 5,571,245 ANippondenso Co., Ltd. · 1996