F01L 1/267
With means for varying the timing or the lift of the valves
Official title: {with means for varying the timing or the lift of the valves}
F01L1/267 (With means for varying the timing or the lift of the valves) appears on 829 US grants and 656 published applications in this corpus.
Search patents in F01L- Granted patents
- 829
- Published applications
- 656
- Assignees
- 162
- Inventors
- 1,135
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 12 | 0 |
| 1989 | 17 | 0 |
| 1990 | 21 | 0 |
| 1991 | 16 | 0 |
| 1992 | 17 | 0 |
| 1993 | 19 | 0 |
| 1994 | 23 | 0 |
| 1995 | 24 | 0 |
| 1996 | 23 | 0 |
| 1997 | 16 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 12 | 0 |
| 2001 | 14 | 4 |
| 2002 | 15 | 19 |
| 2003 | 14 | 18 |
| 2004 | 18 | 28 |
| 2005 | 26 | 44 |
| 2006 | 33 | 21 |
| 2007 | 21 | 25 |
| 2008 | 21 | 24 |
| 2009 | 17 | 33 |
| 2010 | 19 | 32 |
| 2011 | 26 | 32 |
| 2012 | 24 | 16 |
| 2013 | 19 | 16 |
| 2014 | 20 | 17 |
| 2015 | 20 | 23 |
| 2016 | 20 | 34 |
| 2017 | 23 | 42 |
| 2018 | 27 | 30 |
| 2019 | 36 | 30 |
| 2020 | 43 | 33 |
| 2021 | 28 | 29 |
| 2022 | 33 | 29 |
| 2023 | 17 | 18 |
| 2024 | 34 | 25 |
| 2025 | 21 | 26 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Self-contained compression brake control module for integrated rocker arm engine braking and methods28 Apr 2026US 12,612,869 B2Pacbrake Company
- Rocker arm assembly7 Apr 2026US 12,595,753 B2Eaton Intelligent Power Limited
- Rocker arm for brake with integrated hydraulic capsule7 Apr 2026US 12,595,755 B2Eaton Intelligent Power Limited
- Variable valve device24 Mar 2026US 12,584,426 B2Suzuki Motor Corporation
- Reset valve for compression release brake24 Mar 2026US 12,584,427 B2Cummins Inc.
- Engine13 Aug 2026US 2026/0235053 A1Ishikawa Energy Research Co., Ltd.
- Valve lift conversion control mechanism and valve system of engine9 Jul 2026US 2026/0193997 A1Weichai Power Co., Ltd.
- Valve Bridge11 Jun 2026US 2026/0160189 A1Eaton Intelligent Power Limited
- Valvetrain systems for cylinder deactivation with recharging and methods thereof7 May 2026US 2026/0125995 A1Eaton Intelligent Power Limited
- Retention Assembly for Variable Valve Actuation30 Apr 2026US 2026/0117682 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Engine valve control mechanism88US 4,203,397 AEaton Corporation · 1980
- Apparatus for controlling multi-cylinder internal combustion engine with partial cylinder switching-off mechanism82US 6,138,636 AHonda Giken Kogyo Kabushiki Kaisha · 2000
- Air/fuel ratio estimation system for internal combustion engine68US 5,548,514 AHonda Giken Kogyo Kabushiki Kaisha · 1996
- Multi-cycle, engine braking with positive power valve actuation control system and process for using the same65US 6,000,374 ADiesel Engine Retarders, Inc. · 1999
- Engine compression braking system with integral rocker lever and reset valve60US 6,253,730 B1Cummins Engine Company, Inc. · 2001