F01L 15/14
Arrangements with several co-operating main valves
Official title: Arrangements with several co-operating main valves, e.g. reciprocatory and rotary
F01L15/14 (Arrangements with several co-operating main valves) appears on 9 US grants and 5 published applications in this corpus.
Search patents in F01L- Granted patents
- 9
- Published applications
- 5
- Assignees
- 5
- Inventors
- 9
- Latest grant
- 21 Mar 2017
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Air motor21 Mar 2017US 9,598,958 B2Joe Santa & Associates Pty Limited
- Poppet valve and engine using same19 Jan 2010US 7,647,902 B1
- Poppet valve and engine using same19 May 2009US 7,533,641 B1
- Poppet valve and engine using same15 Jul 2008US 7,398,748 B1
- Poppet valve and engine using same25 Dec 2007US 7,311,068 B2
- Expander for a heat engine18 Feb 2016US 2016/0047243 A1Cogen Microsystems Pty Ltd
- Multi-cylinder internal combustion engine using exhaust gases to increase cylinder filling17 Apr 2014US 2014/0102408 A1Czech Technical Univerzity In Prague, Faculty of Mechanical Engineering, Josef Bozek Research Centr
- Air motor10 Jan 2013US 2013/0008303 A1Joe Santa & Associates Pty Limited
- Poppet valve and engine using same18 Oct 2007US 2007/0240696 A1
- Power system device16 Sep 2004US 2004/0177748 A1
Most cited
By later US patents
- Poppet valve and engine using same14US 7,311,068 B22007
- Rotary valve system for motors and the like having improved sealing means13US 4,119,077 AAlto Automotive, Inc. · 1978
- Rotary valve system for motors and the like having improved sealing means13US 4,201,174 AAlto Automotive, Inc. · 1980
- Rotary valve system for motors and the like having improved sealing means11US 4,098,238 AAlto Automotive, Inc. · 1978
- Internal combustion engine having diverter valve and separate passage for purging engine4US 4,487,171 A1984