F02M 31/093
Air intake passage surrounding the exhaust gas passage
Official title: Air intake passage surrounding the exhaust gas passage; Exhaust gas passage surrounding the air intake passage
F02M31/093 (Air intake passage surrounding the exhaust gas passage) appears on 66 US grants and 30 published applications in this corpus.
Search patents in F02M- Granted patents
- 66
- Published applications
- 30
- Assignees
- 26
- Inventors
- 87
- Latest grant
- 20 Sep 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 2 | 3 |
| 2005 | 5 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 3 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 2 |
| 2013 | 1 | 0 |
| 2014 | 2 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 7 | 5 |
| 2018 | 2 | 2 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
| 2021 | 2 | 0 |
| 2022 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
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- Apparatus and method to improve vaporization of fuel in internal combustion engines24 Mar 2022US 2022/0090564 A1Watt If Consulting and Developing LLC
- Apparatus and method to improve vaporization of fuel in internal combustion engines12 Nov 2020US 2020/0355144 A1Watt If Consulting and Developing LLC
- Temperature control throttle device19 Sep 2019US 2019/0285030 A1
- An internal combustion engine system20 Dec 2018US 2018/0363535 A1Volvo Truck Corporation
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Most cited
By later US patents
- High-efficiency Otto cycle engine with power generating expander25US 6,817,182 B22004
- Fuel vaporizers for internal combustion engines20US 4,167,165 AThe Secretary of State for Industry in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1979
- Power plant and fuel supply method therefor19US 7,587,998 B2Nissan Motor Co., Ltd. · 2009
- Fuel vaporizing system18US 5,291,870 A1994
- Evaporation chamber for fuel delivery systems17US 4,476,840 A1984