F02M 69/20
The device being a servo-motor
Official title: the device being a servo-motor, e.g. using engine intake air pressure or vacuum (the actuating device comprising a member movably mounted in the air intake conduit and displaced according to the quantity of air admitted to the engine F02M69/22)
F02M69/20 (The device being a servo-motor) appears on 53 US grants and 3 published applications in this corpus.
Search patents in F02M- Granted patents
- 53
- Published applications
- 3
- Assignees
- 33
- Inventors
- 98
- Latest grant
- 6 Oct 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 1 | 0 |
| 1979 | 5 | 0 |
| 1980 | 11 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 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 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
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- Fuel injection system1 Apr 2014US 8,683,978 B2Turn and Bank Holdings, Inc.
- Fuel injection system27 Aug 2013US 8,516,994 B2Turn and Bank Holdings, Inc.
- Injection quantity control apparatus provided to internal combustion engine19 Jun 2001US 6,247,455 B1Toyota Jidosha Kabushiki Kaisha
- Fluid metering device8 Dec 1998US 5,845,622 A
Most cited
By later US patents
- Method and apparatus for supplying fuel to internal combustion engines36US 4,920,942 ADiesel Kiki Co., Ltd. · 1990
- Fuel air mixture supply system for use in fuel-injection-type internal combustion engine29US 4,216,753 AAisan Kogyo Kabushiki Kaisha · 1980
- Crankcase scavenged two-stroke engines24US 5,503,119 ARicardo Consulting Engineers Limited · 1996
- Fuel control22US 4,228,777 AThe Bendix Corporation · 1980
- Fuel feed device for engine22US 4,235,205 AMikuni Kogyo Kabushiki Kaisha · 1980