F01C 20/16
Using lift valves
Official title: using lift valves
F01C20/16 (Using lift valves) appears on 12 US grants and 7 published applications in this corpus.
Search patents in F01C- Granted patents
- 12
- Published applications
- 7
- Assignees
- 6
- Inventors
- 22
- Latest grant
- 6 Sep 2016
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 3 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- HCCI rotary engine with variable compression ratio control6 Sep 2016US 9,435,257 B2Customachinery Inc.
- Displacement type expansion machine and fluid machine2 Sep 2008US 7,419,369 B2Daikin Industries, Ltd.
- Vane rotary expansion engine25 Mar 2008US 7,347,675 B2Matsushita Electric Industrial Co., Ltd.
- Toroidal engine with variable displacement volume11 Mar 2008US 7,341,041 B2VGT Technologies, Inc.
- Rotary positive displacement machine19 Jun 2007US 7,231,894 B2E. A. Technical Services Limited
- Hcci rotary engine with variable compression ratio control26 May 2016US 2016/0146009 A1Customachinery Inc.
- Expander and heat pump using the expander19 Nov 2009US 2009/0282845 A1Matsushita Electric Industrial Co., Ltd.
- Expander and heat pump using the expander1 Oct 2009US 2009/0241581 A1Matsushita Electric Industrial Co., Ltd.
- Volume expander and fluid machine27 Jul 2006US 2006/0165542 A1Daikin Industries, Ltd.
- Toroidal engine with variable displacement volume27 Apr 2006US 2006/0086336 A1VGT Technologies, Inc.
Most cited
By later US patents
- Rotary engine with variable compression ratio39US 5,433,179 A1995
- High-power rotary engine with varaiable compression ratio37US 5,622,149 A1997
- Rotary engine with variable displacement35US 5,168,846 A1992
- Toroidal engine with variable displacement volume21US 7,341,041 B2VGT Technologies, Inc. · 2008
- Rotary engine with glow ignition system11US 5,537,973 A1996