F01L 17/00
Slide valve-gear or valve arrangements with cylindrical, sleeve, or part annularly-shaped valves
Official title: Slide valve-gear or valve arrangements with cylindrical, sleeve, or part annularly-shaped valves surrounding working cylinder or piston
F01L17/00 (Slide valve-gear or valve arrangements with cylindrical, sleeve, or part annularly-shaped valves) appears on 18 US grants and 4 published applications in this corpus.
Search patents in F01L- Granted patents
- 18
- Published applications
- 4
- Assignees
- 9
- Inventors
- 20
- Latest grant
- 13 Jul 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 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 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Piston combinations for opposed-piston engines13 Jul 2021US 11,060,403 B2Achates Power, Inc.
- Internal combustion engines23 Jan 2018US 9,874,141 B2Cox Powertrain Limited
- Pneumatic drive26 Apr 2016US 9,322,270 B2INNOMOTIX GmbH
- Automatic reciprocator with manifold and sleeve valve26 Dec 1989US 4,889,034 A
- Radial wave pump7 Jun 1983US 4,386,889 A
Most cited
By later US patents
- Hydraulically driven striking device19US 4,084,486 ALinden-Alimak AB · 1978
- Hydraulically powered impact device12US 4,018,135 AConstruction Technology, Inc. · 1977
- Expansible chamber device10US 4,274,327 A1981
- Hydroacoustic apparatus and valving mechanisms for use therein8US 4,005,637 AHydroacoustics Inc. · 1977
- Reversing valve assembly for a fluid operated well pump8US 4,293,287 ADresser Industries, Inc. · 1981