F01L 2001/186
Split rocking arms
Official title: {Split rocking arms, e.g. rocker arms having two articulated parts and means for varying the relative position of these parts or for selectively connecting the parts to move in unison}
F01L2001/186 (Split rocking arms) appears on 487 US grants and 508 published applications in this corpus.
Search patents in F01L- Granted patents
- 487
- Published applications
- 508
- Assignees
- 84
- Inventors
- 575
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 8 | 0 |
| 1997 | 7 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 5 |
| 2002 | 4 | 1 |
| 2003 | 7 | 4 |
| 2004 | 3 | 5 |
| 2005 | 3 | 5 |
| 2006 | 5 | 6 |
| 2007 | 7 | 15 |
| 2008 | 4 | 16 |
| 2009 | 10 | 5 |
| 2010 | 9 | 9 |
| 2011 | 5 | 6 |
| 2012 | 6 | 9 |
| 2013 | 6 | 22 |
| 2014 | 13 | 11 |
| 2015 | 17 | 20 |
| 2016 | 19 | 34 |
| 2017 | 29 | 47 |
| 2018 | 30 | 47 |
| 2019 | 50 | 47 |
| 2020 | 56 | 56 |
| 2021 | 55 | 46 |
| 2022 | 34 | 19 |
| 2023 | 15 | 15 |
| 2024 | 29 | 26 |
| 2025 | 30 | 21 |
| 2026 | 4 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Variable valve device24 Mar 2026US 12,584,426 B2Suzuki Motor Corporation
- Hydraulic lash adjustment-compatible engine braking system with guided bridge arrangement17 Mar 2026US 12,577,892 B2Eaton Intelligent Power Limited
- Integrated rocker for engine braking with hydraulic lash adjuster24 Feb 2026US 12,560,111 B2Eaton Intelligent Power Limited
- Method to perform rebreathe mode transitions17 Feb 2026US 12,553,398 B2Saudi Arabian Oil Company
- Variable valve lift rocker arm assembly25 Nov 2025US 12,480,429 B2Eaton Intelligent Power Limited
- Valve bridge anti-dislodgement structures1 Oct 2026US 2026/0298114 A1Eaton Intelligent Power Limited
- Deactivation mechanism and associated valve events for divided exhaust boost (deb) engine23 Jul 2026US 2026/0210303 A1Aramco Services Company
- Deactivating roller with torsional spring2 Jul 2026US 2026/0185466 A1Eaton Intelligent Power Limited
- Telescopic bridge assembly for rocker arm assembly2 Jul 2026US 2026/0185467 A1Eaton Intelligent Power Limited
- Cylinder deactivation system25 Jun 2026US 2026/0176991 A1
Most cited
By later US patents
- Finger follower rocker arm with engine valve deactivator136US 5,544,626 AFord Motor Company · 1996
- Process and apparatus for compression release engine retarding producing two compression release events per cylinder per engine cycle103US 4,572,114 AThe Jacobs Manufacturing Company · 1986
- Multipositional lift rocker arm assembly97US 6,532,920 B1Ford Global Technologies, LLC · 2003
- Engine valve control mechanism88US 4,151,817 AEaton Corporation · 1979
- Engine valve control mechanism88US 4,203,397 AEaton Corporation · 1980