F01L 9/18
Means for increasing the initial opening force on the valve
F01L9/18 (Means for increasing the initial opening force on the valve) appears on 14 US grants and 12 published applications in this corpus.
Search patents in F01L- Granted patents
- 14
- Published applications
- 12
- Assignees
- 10
- Inventors
- 19
- Latest grant
- 22 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 1 | 0 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Internal combustion engine for a motor vehicle, and method for operating such an internal combustion engine22 Mar 2022US 11,280,279 B2Daimler AG
- Internal combustion engine for a motor vehicle, and method for operating such an internal combustion engine1 Feb 2022US 11,236,687 B2Daimler AG
- System and method for calibrating a valve lift sensor and evaluating a valve lift sensor and a hydraulic valve actuator6 Dec 2016US 9,512,749 B2GM Global Technology Operations LLC
- Compressed gas energy storage system26 Jan 2016US 9,243,585 B2LightSail Energy, Inc.
- Hybrid cam-camless variable valve actuation system13 Oct 2015US 9,157,339 B2Eaton Corporation
- Internal Combustion Engine for a Motor Vehicle, and Method for Operating Such an Internal Combustion Engine10 Dec 2020US 2020/0386172 A1Daimler AG
- Hybrid cam-camless variable valve actuation system1 May 2014US 2014/0116363 A1Eaton Corporation
- System and method for calibrating a valve lift sensor and evaluating a valve lift sensor and a hydraulic valve actuator5 Dec 2013US 2013/0325290 A1GM Global Technology Operations LLC
- Compressed gas energy storage system25 Apr 2013US 2013/0098027 A1LightSail Energy, Inc.
- Variable valve actuator with a pneumatic booster27 May 2010US 2010/0126442 A1Scuderi Group, LLC
Most cited
By later US patents
- Vehicle operating method and system115US 6,223,846 B12001
- Variable engine valve control system with hydraulic damper65US 5,275,136 AFord Motor Company · 1994
- Variable valve actuator with a pneumatic booster14US 7,536,984 B2LGD Technology, LLC · 2009
- Dual control valve9US 6,745,958 B2International Engine Intellectual Property Company, LLC · 2004
- Fuel injector with dual control valve8US 6,845,926 B2International Engine Intellectual Property Company, LLC · 2005