F01L 25/08
Drive, or adjustment during the operation, or distribution or expansion valves by
Official title: by electric or magnetic means
F01L25/08 (Drive, or adjustment during the operation, or distribution or expansion valves by) appears on 54 US grants and 16 published applications in this corpus.
Search patents in F01L- Granted patents
- 54
- Published applications
- 16
- Assignees
- 30
- Inventors
- 80
- Latest grant
- 25 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 3 |
| 2016 | 0 | 0 |
| 2017 | 3 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Multiple diaphragm pump with magnetic actuation of the spool valve to avoid a dead zone25 Jun 2024US 12,018,669 B2Lutz Pumpen GmbH
- Flow aperture method and apparatus14 Nov 2023US 11,814,186 B2General Electric Company
- Engine control system and method for controlling activation of solenoid valves26 Jan 2021US 10,900,391 B2Vitesco Technologies USA, LLC
- Camshaft adjusting system with flex pot for decoupling of the adjustment ranges15 Dec 2020US 10,865,663 B2Schaeffler Technologies AG & Co. KG
- Method and apparatus for operating an engine on compressed gas11 Aug 2020US 10,738,614 B2
- Flow Aperture Method and Apparatus8 Jun 2023US 2023/0174246 A1General Electric Company
- Multiple diaphragm pump25 Aug 2022US 2022/0268267 A1Lutz Pumpen GmbH
- Camshaft adjusting system with flex pot for decoupling of the adjustment ranges26 Mar 2020US 2020/0095900 A1Schaeffler Technologies AG & Co. KG
- Camshaft adjusting system having a second camshaft which is supported on the stator in the axial direction26 Mar 2020US 2020/0095904 A1Schaeffler Technologies AG & Co. KG
- Method and apparatus for operating an engine on compressed gas6 Feb 2020US 2020/0040730 A1
Most cited
By later US patents
- Double diaphragm pump38US 5,222,876 A1993
- Double valve mechanism for an acoustic modulator37US 4,893,655 AThe United States of America as represented by the Secretary of the Navy · 1990
- Pump assembly and its method of operation36US 4,780,064 AFlow Industries, Inc. · 1988
- Method and apparatus for pumping viscous and/or abrasive fluids34US 4,439,112 AHK-Engineering AB · 1984
- Piston and cylinder device33US 4,176,586 A1979