F02P 3/0807
Closing the discharge circuit of the storage capacitor with electronic switching means
Official title: {Closing the discharge circuit of the storage capacitor with electronic switching means (F02P3/0853, F02P3/0876, F02P3/09 take precedence)}
F02P3/0807 (Closing the discharge circuit of the storage capacitor with electronic switching means) appears on 146 US grants and 96 published applications in this corpus.
Search patents in F02P- Granted patents
- 146
- Published applications
- 96
- Assignees
- 86
- Inventors
- 255
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 0 |
| 2002 | 4 | 3 |
| 2003 | 4 | 5 |
| 2004 | 4 | 2 |
| 2005 | 3 | 4 |
| 2006 | 4 | 5 |
| 2007 | 4 | 7 |
| 2008 | 5 | 5 |
| 2009 | 5 | 3 |
| 2010 | 3 | 3 |
| 2011 | 0 | 3 |
| 2012 | 3 | 3 |
| 2013 | 2 | 7 |
| 2014 | 7 | 2 |
| 2015 | 4 | 7 |
| 2016 | 4 | 6 |
| 2017 | 3 | 10 |
| 2018 | 7 | 5 |
| 2019 | 5 | 4 |
| 2020 | 6 | 1 |
| 2021 | 1 | 4 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 4 | 3 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Engine ignition systems and control methods therefor2 Dec 2025US 12,486,822 B2Hamilton Sundstrand Corporation
- High-voltage ignition device for automobiles that can avoid generating high temperatures12 Aug 2025US 12,385,458 B2
- Ignition system and method controlling spark ignited combustion engines24 Dec 2024US 12,173,678 B2Sem AB
- Method and apparatus for operating traveling spark igniter at high pressure3 Dec 2024US 12,158,132 B2Knite, Inc.
- Dual energy ignition system with on time energy transfer and a method thereof15 Oct 2024US 12,116,968 B2
- Preignition detection for hydrogen combustion engines24 Sep 2026US 2026/0286925 A1Cummins Inc.
- High-voltage ignition device for automobiles that can avoid generating high temperatures5 Dec 2024US 2024/0401553 A1
- Engine ignition systems and control methods therefor13 Jun 2024US 2024/0191681 A1Hamilton Sundstrand Corporation
- A dual energy ignition system with on time energy transfer and a method thereof25 Jan 2024US 2024/0026850 A1
- Method and apparatus for operating traveling spark igniter at high pressure13 Apr 2023US 2023/0114936 A1Knite, Inc.
Most cited
By later US patents
- Plasma ignition system79US 4,369,758 ANissan Motor Co., Ltd. · 1983
- Distributorless capacitive discharge ignition system71US 5,131,376 ACombustion Electronics, Inc. · 1992
- Ignition system for combustion-powered tool57US 5,133,329 AIllinois Tool Works Inc. · 1992
- Capacitive discharge ignition adapter40US 3,933,140 ASyncro S.R.L. · 1976
- Method and apparatus for operating traveling spark igniter at high pressure40US 7,467,612 B2Knite, Inc. · 2008