F01L 1/2405
By means of a hydraulic adjusting device located between the cylinder head
Official title: {by means of a hydraulic adjusting device located between the cylinder head and rocker arm}
F01L1/2405 (By means of a hydraulic adjusting device located between the cylinder head) appears on 607 US grants and 547 published applications in this corpus.
Search patents in F01L- Granted patents
- 607
- Published applications
- 547
- Assignees
- 134
- Inventors
- 843
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 6 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 13 | 0 |
| 1998 | 6 | 0 |
| 1999 | 14 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 2 |
| 2002 | 6 | 7 |
| 2003 | 11 | 11 |
| 2004 | 6 | 5 |
| 2005 | 10 | 12 |
| 2006 | 14 | 27 |
| 2007 | 17 | 22 |
| 2008 | 15 | 27 |
| 2009 | 13 | 46 |
| 2010 | 23 | 30 |
| 2011 | 30 | 34 |
| 2012 | 31 | 21 |
| 2013 | 21 | 14 |
| 2014 | 20 | 18 |
| 2015 | 20 | 27 |
| 2016 | 18 | 48 |
| 2017 | 35 | 40 |
| 2018 | 48 | 48 |
| 2019 | 39 | 29 |
| 2020 | 51 | 36 |
| 2021 | 25 | 18 |
| 2022 | 13 | 7 |
| 2023 | 12 | 7 |
| 2024 | 7 | 6 |
| 2025 | 1 | 2 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rocker arm assembly7 Apr 2026US 12,595,753 B2Eaton Intelligent Power Limited
- Oil pan for internal combustion engine3 Mar 2026US 12,565,852 B2Arctic Cat Inc.
- Method to perform rebreathe mode transitions17 Feb 2026US 12,553,398 B2Saudi Arabian Oil Company
- Variable valve device11 Feb 2025US 12,221,910 B2Suzuki Motor Corporation
- Rocker arm assembly10 Dec 2024US 12,163,447 B2Eaton Intelligent Power Limited
- Oil pan for internal combustion engine9 Jul 2026US 2026/0194004 A1Arctic Cat Inc.
- Cylinder head structure for internal combustion engine25 Jun 2026US 2026/0176988 A1
- Method to perform rebreathe mode transitions1 Jan 2026US 2026/0002481 A1Aramco Services Company
- Rocker Arm Assemblies for Engine Braking16 Oct 2025US 2025/0320826 A1Eaton Intelligent Power Limited
- Rocker arm assembly24 Apr 2025US 2025/0129729 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Engine valve control mechanism88US 4,203,397 AEaton Corporation · 1980
- Valve control system67US 5,660,153 AEaton Corporation · 1997
- Two-step finger follower rocker arm assembly59US 6,668,779 B2Delphi Technologies, Inc. · 2003
- Methods for variable displacement engine diagnostics57US 7,546,827 B1Ford Global Technologie, LLC · 2009
- Deactivating roller finger follower55US 7,677,213 B2Timken US Corporation · 2010