F01L 13/02
Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or
Official title: for reversing
F01L13/02 (Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or) appears on 24 US grants and 11 published applications in this corpus.
Search patents in F01L- Granted patents
- 24
- Published applications
- 11
- Assignees
- 14
- Inventors
- 45
- Latest grant
- 12 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 1 |
| 2007 | 1 | 1 |
| 2008 | 3 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 2 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Valve operation changing system of internal combustion engine49US 4,534,323 ANissan Motor Co., Ltd. · 1985
- Mechanism for actuating the valve rockers of an internal combustion engine19US 4,510,897 AMotorenfabrik Hatz GmbH & Co. KG · 1985
- Reversible internal combustion engine15US 6,237,546 B1DaimlerChrysler AG · 2001
- Variable valve timing control device of internal combustion engine15US 7,107,951 B2Denso Corporation · 2006
- Hybrid powertrain with reversing engine and method of control13US 8,033,954 B2GM Global Technology Operations LLC · 2011