F01L 7/045
With two or more valves arranged coaxially
Official title: {with two or more valves arranged coaxially}
F01L7/045 (With two or more valves arranged coaxially) appears on 6 US grants and 6 published applications in this corpus.
Search patents in F01L- Granted patents
- 6
- Published applications
- 6
- Assignees
- 3
- Inventors
- 10
- Latest grant
- 15 Dec 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 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 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 2 | 1 |
| 2020 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Run out tolerant reciprocating cylinder sleeve seal carbon scraper15 Dec 2020US 10,865,669 B2Dana Automotive Systems Group, LLC
- Valve apparatus having slowly revolving rotary valves for internal combustion engines6 Aug 2019US 10,371,022 B2
- Free-piston engine6 Aug 2019US 10,371,045 B2
- Reciprocating cylinder engine10 Nov 2009US 7,614,369 B2Motorpat, L.L.C.
- Internal combustion engine26 Jun 2007US 7,234,423 B2
- Run out tolerant reciprocating cylinder sleeve seal carbon scraper16 Jul 2020US 2020/0224563 A1Dana Automotive Systems Group, LLC
- Free-Piston Engine23 May 2019US 2019/0153936 A1
- Valve apparatus having slowly revolving rotary valves for internal combustion engines22 Feb 2018US 2018/0051600 A1
- Sleeve valve oil seal25 Dec 2014US 2014/0373802 A1Pinnacle Engines, Inc.
- Reciprocating cylinder engine17 May 2007US 2007/0107679 A1Motorpat, L.L.C.
Most cited
By later US patents