F02P 3/0453
Opening or closing the primary coil circuit with semiconductor devices
Official title: {Opening or closing the primary coil circuit with semiconductor devices}
F02P3/0453 (Opening or closing the primary coil circuit with semiconductor devices) appears on 324 US grants and 116 published applications in this corpus.
Search patents in F02P- Granted patents
- 324
- Published applications
- 116
- Assignees
- 126
- Inventors
- 499
- Latest grant
- 3 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 14 | 0 |
| 1978 | 11 | 0 |
| 1979 | 7 | 0 |
| 1980 | 12 | 0 |
| 1981 | 16 | 0 |
| 1982 | 12 | 0 |
| 1983 | 14 | 0 |
| 1984 | 12 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 7 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 13 | 0 |
| 1991 | 15 | 0 |
| 1992 | 2 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 3 |
| 2003 | 3 | 5 |
| 2004 | 9 | 19 |
| 2005 | 9 | 8 |
| 2006 | 11 | 3 |
| 2007 | 3 | 1 |
| 2008 | 3 | 4 |
| 2009 | 1 | 2 |
| 2010 | 4 | 3 |
| 2011 | 2 | 1 |
| 2012 | 2 | 4 |
| 2013 | 3 | 1 |
| 2014 | 1 | 5 |
| 2015 | 1 | 7 |
| 2016 | 7 | 9 |
| 2017 | 12 | 7 |
| 2018 | 5 | 6 |
| 2019 | 7 | 9 |
| 2020 | 3 | 5 |
| 2021 | 10 | 6 |
| 2022 | 5 | 5 |
| 2023 | 6 | 1 |
| 2024 | 2 | 0 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for igniting a motor vehicle combustion engine3 Jun 2025US 12,320,319 B2Vitesco Technologies GmbH
- Ignition coil control system and method20 Aug 2024US 12,065,997 B2Hyundai Motor Company
- System and method for controlling ignition coil23 Jan 2024US 11,879,420 B1Hyundai Motor Company
- Ignition coil control system and method19 Dec 2023US 11,846,262 B2Hyundai Motor Company
- System of ignition coil24 Oct 2023US 11,795,899 B1Hyundai Motor Company
- Ignition coil and ignition device20 Nov 2025US 2025/0354533 A1Diamond&Zebra Electric Mfg. Co., Ltd.
- Method for igniting a motor vehicle combustion engine2 Jan 2025US 2025/0003379 A1Vitesco Technologies GmbH
- Ignition coil control system and method2 Feb 2023US 2023/0035555 A1Hyundai Motor Company
- Ignition coil control system17 Nov 2022US 2022/0364537 A1Hyundai Motor Company
- Ignition coil control system and method1 Sep 2022US 2022/0275782 A1Hyundai Motor Company
Most cited
By later US patents
- Noise blanker circuit for use with electronic ignition systems or the like224US 4,347,827 AMotorola, Inc. · 1982
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Engine control unit63US 5,598,825 ATranscom Gas Technologies Pty Ltd. · 1997
- Conversion system with electronic controller for utilization of gaseous fuels in spark ignition engines59US 6,145,494 AAlternative Fuel Systems, Inc. · 2000
- Electronic ignition system47US 3,937,193 AFord Motor Company · 1976