F02P 17/00
Testing of ignition installations
Official title: Testing of ignition installations, e.g. in combination with adjusting (testing fuel injection apparatus F02M65/00; testing ignition installations in general F23Q23/00); Testing of ignition timing in compression-ignition engines
F02P17/00 (Testing of ignition installations) appears on 1,298 US grants and 631 published applications in this corpus.
Search patents in F02P- Granted patents
- 1,298
- Published applications
- 631
- Assignees
- 346
- Inventors
- 1,795
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 27 | 0 |
| 1978 | 25 | 0 |
| 1979 | 15 | 0 |
| 1980 | 8 | 0 |
| 1981 | 19 | 0 |
| 1982 | 13 | 0 |
| 1983 | 21 | 0 |
| 1984 | 25 | 0 |
| 1985 | 17 | 0 |
| 1986 | 10 | 0 |
| 1987 | 20 | 0 |
| 1988 | 16 | 0 |
| 1989 | 21 | 0 |
| 1990 | 20 | 0 |
| 1991 | 32 | 0 |
| 1992 | 29 | 0 |
| 1993 | 44 | 0 |
| 1994 | 44 | 0 |
| 1995 | 48 | 0 |
| 1996 | 36 | 0 |
| 1997 | 42 | 0 |
| 1998 | 31 | 0 |
| 1999 | 32 | 0 |
| 2000 | 29 | 0 |
| 2001 | 31 | 4 |
| 2002 | 33 | 20 |
| 2003 | 29 | 27 |
| 2004 | 28 | 31 |
| 2005 | 29 | 28 |
| 2006 | 26 | 15 |
| 2007 | 9 | 21 |
| 2008 | 15 | 16 |
| 2009 | 14 | 31 |
| 2010 | 22 | 29 |
| 2011 | 17 | 18 |
| 2012 | 16 | 20 |
| 2013 | 17 | 21 |
| 2014 | 14 | 23 |
| 2015 | 22 | 49 |
| 2016 | 36 | 41 |
| 2017 | 50 | 44 |
| 2018 | 43 | 51 |
| 2019 | 46 | 39 |
| 2020 | 42 | 26 |
| 2021 | 40 | 21 |
| 2022 | 25 | 28 |
| 2023 | 20 | 5 |
| 2024 | 14 | 9 |
| 2025 | 7 | 6 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02P 17/12Testing characteristics of the spark, ignition voltage or current892
- F02P 17/02Checking or adjusting ignition timing265
- F02P 2017/006Testing of ignition installations: using a capacitive sensorIndexing code80
- F02P 2017/003Testing of ignition installations: using an inductive sensorIndexing code62
- F02P 17/10Measuring dwell or antidwell time55
Recent patents
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- Turbulent jet ignition engine misfire detection24 Feb 2026US 12,560,142 B2Fca US LLC
- Adaptive spark energy control10 Feb 2026US 12,546,279 B2Altronic, Inc.
- Engine ignition systems and control methods therefor2 Dec 2025US 12,486,822 B2Hamilton Sundstrand Corporation
- Method and apparatus to control an ignition system16 Sep 2025US 12,416,282 B2BorgWarner Luxembourg Automotive Systems SA
- System and method for monitoring by ion current the combustion in an internal combustion engine8 Oct 2026US 2026/0309113 A1Ferrari S.P. A.
- Preignition detection for hydrogen combustion engines24 Sep 2026US 2026/0286925 A1Cummins Inc.
- Method for operating an internal combustion engine, control device for carrying out such a method and internal combustion engine comprising such a control device3 Sep 2026US 2026/0258773 A1Rolls-Royce Solutions GmbH
- System and method for detecting engine conditions using ignition system20 Aug 2026US 2026/0243222 A1Altronic, Inc.
- Temperature control system for hot surface igniter21 May 2026US 2026/0139835 A1Chongqing Le-Mark Technology Co
Most cited
By later US patents
- Exhaust gas control using a spark plug ionization signal198US 6,980,903 B2Visteon Global Technologies, Inc. · 2005
- Capacitor discharge ignition testing apparatus employing visual spark gap indicator188US 3,979,664 ABrunswick Corporation · 1976
- Dual threshold low coil signal conditioner185US 4,112,351 AUnited Technologies Corporation · 1978
- Compensation circuit for an automotive ignition sensing system165US 6,392,315 B1Delphi Technologies, Inc. · 2002
- Capacitively-coupled test probe153US 5,274,336 AHewlett-Packard Company · 1993