F02P 5/1556
Using a stepped control, dependent on speed
Official title: {using a stepped control, dependent on speed}
F02P5/1556 (Using a stepped control, dependent on speed) appears on 69 US grants and 2 published applications in this corpus.
Search patents in F02P- Granted patents
- 69
- Published applications
- 2
- Assignees
- 44
- Inventors
- 101
- Latest grant
- 3 Apr 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 8 | 0 |
| 1979 | 13 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Ignition system3 Apr 2018US 9,932,935 B2PRUEFREX engineering e motion GmbH & Co. KG
- Engine rotation speed controller for working machine20 Jul 2010US 7,757,661 B2Honda Motor Co., Ltd.
- Ignition control for fuel direct injection type engine23 Jan 2001US 6,176,216 B1Denso Corporation
- Engine operation control system3 Mar 1998US 5,722,370 ASanshin Kogyo Kabushiki Kaisha
- Ignition system for an internal combustion engine, particularly for use in a chain saw or the like8 Jul 1997US 5,645,037 AFHP Elmotor Aktiebolag
Most cited
By later US patents
- Engine operation control system27US 5,722,370 ASanshin Kogyo Kabushiki Kaisha · 1998
- Low speed limiter unit for internal combustion engine ignition systems26US 4,244,336 ABrunswick Corporation · 1981
- Multiple slope ignition spark timing circuit25US 4,104,997 AMotorola, Inc. · 1978
- Engine speed sensing device23US 4,527,248 ANissan Motor Co., Ltd. · 1985
- Electronic ignition system21US 3,990,417 AEltra Corporation · 1976