F02B 31/087
Having three or more inlet valves
Official title: {having three or more inlet valves}
F02B31/087 (Having three or more inlet valves) appears on 52 US grants and 5 published applications in this corpus.
Search patents in F02B- Granted patents
- 52
- Published applications
- 5
- Assignees
- 13
- Inventors
- 69
- Latest grant
- 23 Oct 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 6 | 0 |
| 1998 | 12 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 0 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Control device for internal combustion engine23 Oct 2018US 10,107,147 B2Toyota Jidosha Kabushiki Kaisha
- Intake system for combustion engine3 Jul 2007US 7,237,522 B2Kawasaki Jukogyo Kabushiki Kaisha
- Process for controlling the valves of an internal combustion engine3 Jan 2006US 6,981,475 B2Peugeot Citroen Automobiles SA
- Internal combustion engine17 May 2005US 6,892,696 B2Honda Motor Co., Ltd.
- Intake manifold valve system20 Jul 2004US 6,763,802 B1Hayes Lemmerz International, Inc.
- Control device for internal combustion engine11 Jan 2018US 2018/0010486 A1Toyota Jidosha Kabushiki Kaisha
- Intake system for combustion engine2 Mar 2006US 2006/0042603 A1Kawasaki Jukogyo Kabushiki Kaisha
- Process for controlling the valves of an internal combustion engine16 Dec 2004US 2004/0250780 A1Peugeot Citroen Automobiles SA
- Internal combustion engine23 Sep 2004US 2004/0182362 A1Honda Motor Co., Ltd.
- Internal combustion engine14 Feb 2002US 2002/0017272 A1
Most cited
By later US patents
- Induction system for fuel injected engine41US 6,039,029 AYamaha Hatsudoki Kabushiki Kaisha · 2000
- Valve timing system for engine40US 5,913,298 AYamaha Hatsudoki Kabushiki Kaisha · 1999
- Fuel injection type internal combustion engine37US 4,667,636 AToyota Jidosha Kabushiki Kaisha · 1987
- Combustion chamber for direct injected engine30US 6,035,822 AYamaha Hatsudoki Kabushiki Kaisha · 2000
- Induction control system for multi-valve engine29US 5,852,994 AYamaha Hatsudoki Kabushiki Kaisha · 1998