F01L 13/0005
Deactivating valves
Official title: {Deactivating valves}
F01L13/0005 (Deactivating valves) appears on 1,232 US grants and 1,111 published applications in this corpus.
Search patents in F01L- Granted patents
- 1,232
- Published applications
- 1,111
- Assignees
- 179
- Inventors
- 1,473
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 7 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 8 | 0 |
| 1985 | 7 | 0 |
| 1986 | 11 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 10 | 0 |
| 1995 | 9 | 0 |
| 1996 | 13 | 0 |
| 1997 | 21 | 0 |
| 1998 | 12 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 28 | 9 |
| 2002 | 28 | 38 |
| 2003 | 39 | 35 |
| 2004 | 41 | 37 |
| 2005 | 33 | 58 |
| 2006 | 58 | 44 |
| 2007 | 38 | 67 |
| 2008 | 42 | 56 |
| 2009 | 34 | 65 |
| 2010 | 45 | 35 |
| 2011 | 53 | 24 |
| 2012 | 33 | 31 |
| 2013 | 19 | 34 |
| 2014 | 29 | 31 |
| 2015 | 41 | 32 |
| 2016 | 24 | 63 |
| 2017 | 45 | 70 |
| 2018 | 54 | 70 |
| 2019 | 78 | 66 |
| 2020 | 84 | 73 |
| 2021 | 68 | 55 |
| 2022 | 50 | 39 |
| 2023 | 25 | 28 |
| 2024 | 37 | 25 |
| 2025 | 35 | 18 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Variable displacement valvetrain systems with rocker shaft porting and insert sleeves for engine cylinder deactivation22 Sep 2026US 12,742,403 B2GM Global Technology Operations LLC
- Rocker arm assembly7 Apr 2026US 12,595,753 B2Eaton Intelligent Power Limited
- Combinations and sub combinations of valvetrain assemblies20 Jan 2026US 12,529,329 B2Eaton Intelligent Power Limited
- Castellation assembly, rocker arm, and actuator assembly therefor23 Dec 2025US 12,503,965 B2Eaton Intelligent Power Limited
- Method for dynamically determining a firing pattern for an engine with dynamic cylinder activation and a system implementing the method16 Dec 2025US 12,497,928 B2Purdue Research Foundation
- Deactivation mechanism and associated valve events for divided exhaust boost (deb) engine23 Jul 2026US 2026/0210303 A1Aramco Services Company
- Telescopic bridge assembly for rocker arm assembly2 Jul 2026US 2026/0185467 A1Eaton Intelligent Power Limited
- Cylinder deactivation system25 Jun 2026US 2026/0176991 A1
- Switchable rocker arms assemblies and methods thereof7 May 2026US 2026/0125994 A1Eaton Intelligent Power Limited
- Valvetrain systems for cylinder deactivation with recharging and methods thereof7 May 2026US 2026/0125995 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- System for controllably disabling cylinders in an internal combustion engine206US 6,619,258 B2Delphi Technologies, Inc. · 2003
- Finger follower rocker arm with engine valve deactivator136US 5,544,626 AFord Motor Company · 1996
- Vehicle operating method and system115US 6,223,846 B12001
- 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
- Method and apparatus for electrically driving engine valves95US 5,327,856 AGeneral Motors Corporation · 1994