F01L 31/08
Valve drive or valve adjustment, apart from tripping aspects
Official title: Valve drive or valve adjustment, apart from tripping aspects; Positively-driven gear
F01L31/08 (Valve drive or valve adjustment, apart from tripping aspects) appears on 15 US grants and 12 published applications in this corpus.
Search patents in F01L- Granted patents
- 15
- Published applications
- 12
- Assignees
- 12
- Inventors
- 49
- Latest grant
- 11 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 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 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 2 | 6 |
| 2021 | 1 | 0 |
| 2022 | 3 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- System and method for determining position of axial cam shifting system11 Feb 2025US 12,221,911 B1Fca US LLC
- Valve mechanism, engine and vehicle20 Sep 2022US 11,448,105 B2Great Wall Motor Company Limited
- Rocker arm15 Feb 2022US 11,248,501 B2Eaton Intelligent Power Limited
- Slotted guide1 Feb 2022US 11,236,647 B2Mahle International GmbH
- Actuator arrangement29 Jun 2021US 11,047,268 B2Eaton Intelligent Power Limited
- Orbital-epicycle crankshaft with a reversible and adjustable constant volume combustion cycle at tdc or bdc31 Aug 2023US 2023/0272739 A1
- Slotted guide17 Sep 2020US 2020/0291830 A1Mahle International GmbH
- Valve mechanism, engine and vehicle7 May 2020US 2020/0141291 A1Great Wall Motor Company Limited
- Rocker arm30 Apr 2020US 2020/0131948 A1Eaton Intelligent Power Limited
- Actuator arrangement30 Apr 2020US 2020/0131949 A1Eaton Intelligent Power Limited
Most cited
By later US patents