F01L 1/255
Between cam and rocker arm
Official title: between cam and rocker arm
F01L1/255 (Between cam and rocker arm) appears on 54 US grants and 38 published applications in this corpus.
Search patents in F01L- Granted patents
- 54
- Published applications
- 38
- Assignees
- 29
- Inventors
- 83
- Latest grant
- 13 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 3 | 9 |
| 2007 | 4 | 0 |
| 2008 | 6 | 6 |
| 2009 | 1 | 3 |
| 2010 | 1 | 0 |
| 2011 | 3 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 3 | 4 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Lost motion variable valve actuation systems and method13 May 2025US 12,297,757 B2Jacobs Vehicle Systems, Inc.
- Internal combustion engine with charging system14 Feb 2023US 11,578,649 B2
- Valve actuation system comprising in-series lost motion components deployed in a pre-rocker arm valve train component and valve bridge6 Dec 2022US 11,519,307 B2Jacobs Vehicle Systems, Inc.
- Self-resetting single-valve double-piston hydraulic drive device and method for overhead cam engine5 Jul 2022US 11,377,980 B2Jiangsu Jointek Precision Machinery Co., Ltd.
- Lost motion variable valve actuation systems and methods25 Jan 2022US 11,230,951 B2Jacobs Vehicle Systems, Inc.
- Two-step valve closing rocker assembly16 Mar 2023US 2023/0081789 A1
- Valve actuation system comprising in-series lost motion components deployed in a pre-rocker arm valve train component and valve bridge22 Sep 2022US 2022/0298935 A1Jacobs Vehicle Systems, Inc.
- Internal combustion engine with charging system22 Sep 2022US 2022/0298964 A1
- Self-resetting single-valve double-piston hydraulic drive device and method for overhead cam engine2 Jun 2022US 2022/0170390 A1Jiangsu Jointek Precision Machinery Co., Ltd.
- Lost motion variable valve actuation systems and method12 May 2022US 2022/0145785 A1Jacobs Vehicle Systems, Inc.
Most cited
By later US patents
- Variable valve lift mechanism used in an internal combustion engine38US 4,258,671 AToyota Jidosha Kogyo Kabushiki Kaisha · 1981
- Hydraulic engine valve lifter assembly37US 4,796,573 AAllied-Signal Inc. · 1989
- Hydraulic lifter28US 4,463,714 ANissan Motor Co., Ltd. · 1984
- Lost motion actuator28US 5,158,048 ASiemens Automotive Corporation · 1992
- Valve drive device for an internal combustion engine27US 4,192,263 AToyota Jidosha Kogyo Kabushiki Kaisha · 1980