F02P 9/005
By weakening or suppression of sparks to limit the engine speed
Official title: {by weakening or suppression of sparks to limit the engine speed}
F02P9/005 (By weakening or suppression of sparks to limit the engine speed) appears on 229 US grants and 106 published applications in this corpus.
Search patents in F02P- Granted patents
- 229
- Published applications
- 106
- Assignees
- 101
- Inventors
- 383
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 4 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 8 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 0 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 0 |
| 2002 | 8 | 11 |
| 2003 | 12 | 10 |
| 2004 | 8 | 6 |
| 2005 | 11 | 6 |
| 2006 | 6 | 4 |
| 2007 | 3 | 3 |
| 2008 | 1 | 5 |
| 2009 | 1 | 5 |
| 2010 | 4 | 4 |
| 2011 | 3 | 1 |
| 2012 | 2 | 3 |
| 2013 | 4 | 9 |
| 2014 | 4 | 4 |
| 2015 | 5 | 3 |
| 2016 | 5 | 5 |
| 2017 | 7 | 6 |
| 2018 | 8 | 6 |
| 2019 | 4 | 6 |
| 2020 | 5 | 2 |
| 2021 | 6 | 2 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 2 | 1 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vehicle control system9 Sep 2025US 12,409,729 B1Davis Intellectual Properties LLC
- Control device for internal combustion engine7 Jan 2025US 12,188,426 B2Hitachi Astemo, Ltd.
- Ignition system and method controlling spark ignited combustion engines24 Dec 2024US 12,173,678 B2Sem AB
- Vehicle control system20 Feb 2024US 11,904,686 B2Davis Intellectual Properties LLC
- Internal combustion engine26 Sep 2023US 11,767,801 B2Innio Jenbacher GmbH & Co OG
- Method of restricting rotational speed of an engine of a handheld power tool, control arrangement, and handheld power tool16 Jul 2026US 2026/0201845 A1Husqvarna AB
- Control Device for Internal Combustion Engine29 Feb 2024US 2024/0068423 A1Hitachi Astemo, Ltd.
- Internal combustion engine11 May 2023US 2023/0141267 A1Innio Jenbacher GmbH & Co OG
- Internal combustion engine20 Oct 2022US 2022/0333539 A1Innio Jenbacher GmbH & Co OG
- Two-stroke engine for working machine and series hybrid device for working machine incorporating the same14 Jul 2022US 2022/0220913 A1Yamabiko Corporation
Most cited
By later US patents
- Compensation circuit for an automotive ignition sensing system165US 6,392,315 B1Delphi Technologies, Inc. · 2002
- Data input interface for power and speed controller115US 5,803,043 A1998
- Data input interface for power and speed controller109US 5,769,051 A1998
- Arrangement in a motor saw93US 4,653,189 AAB Electrolux · 1987
- System that supplies electrical power and compressed air with throttle control68US 6,534,958 B1Coleman Powermate, Inc. · 2003