F02P 3/08
Layout of circuits
Official title: Layout of circuits (for low tension F02P3/10)
F02P3/08 (Layout of circuits) appears on 381 US grants and 213 published applications in this corpus.
Search patents in F02P- Granted patents
- 381
- Published applications
- 213
- Assignees
- 170
- Inventors
- 542
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 4 | 0 |
| 1978 | 8 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 7 | 0 |
| 1989 | 8 | 0 |
| 1990 | 13 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 13 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 16 | 0 |
| 2001 | 3 | 0 |
| 2002 | 6 | 7 |
| 2003 | 10 | 10 |
| 2004 | 10 | 5 |
| 2005 | 3 | 6 |
| 2006 | 8 | 7 |
| 2007 | 6 | 11 |
| 2008 | 6 | 7 |
| 2009 | 8 | 6 |
| 2010 | 7 | 7 |
| 2011 | 1 | 7 |
| 2012 | 5 | 13 |
| 2013 | 7 | 11 |
| 2014 | 11 | 7 |
| 2015 | 6 | 13 |
| 2016 | 11 | 13 |
| 2017 | 12 | 27 |
| 2018 | 24 | 12 |
| 2019 | 13 | 14 |
| 2020 | 12 | 8 |
| 2021 | 15 | 8 |
| 2022 | 3 | 6 |
| 2023 | 6 | 2 |
| 2024 | 6 | 4 |
| 2025 | 3 | 0 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02P 3/0876The storage capacitor being charged by means of an energy converter or173
- F02P 3/0807Closing the discharge circuit of the storage capacitor with electronic switching means146
- F02P 3/09For control of the charging current in the capacitor54
- F02P 3/0853For control of the dwell or anti-dwell time51
Recent patents
- Electrically assisted pre-chamber ignition system17 Mar 2026US 12,577,902 B1Saudi Arabian Oil Company
- 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
- Engine ignition systems15 Jul 2025US 12,359,648 B2Hamilton Sundstrand Corporation
- Ignition system and method controlling spark ignited combustion engines24 Dec 2024US 12,173,678 B2Sem AB
- Preignition detection for hydrogen combustion engines24 Sep 2026US 2026/0286925 A1Cummins Inc.
- Electrically assisted pre-chamber ignition system19 Mar 2026US 2026/0078694 A1Aramco Services Company
- 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
- Igniter and engine ignition device28 Mar 2024US 2024/0102438 A1Rohm Co., Ltd.
Most cited
By later US patents
- Ignition system power converter and controller203US 5,558,071 ACombustion Electromagnetics, Inc. · 1996
- Enhanced flame ignition for hydrocarbon fuels134US 4,841,925 ACombustion Electromagnetics, Inc. · 1989
- Multi spark ignition system95US 4,922,883 AAisin Seiki Kabushiki Kaisha · 1990
- High efficiency voltage doubling ignition coil for CD system producing pulsed plasma type ignition92US 4,677,960 ACombustion Electromagnetics, Inc. · 1987
- Optimized high power high energy ignition system88US 5,456,241 ACombustion Electromagnetics, Inc. · 1995