F01L 2001/2444
Details relating to the hydraulic feeding circuit
Official title: {Details relating to the hydraulic feeding circuit, e.g. lifter oil manifold assembly [LOMA]}
F01L2001/2444 (Details relating to the hydraulic feeding circuit) appears on 99 US grants and 103 published applications in this corpus.
Search patents in F01L- Granted patents
- 99
- Published applications
- 103
- Assignees
- 42
- Inventors
- 204
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 2 | 1 |
| 2003 | 4 | 3 |
| 2004 | 1 | 0 |
| 2005 | 2 | 2 |
| 2006 | 3 | 2 |
| 2007 | 2 | 3 |
| 2008 | 0 | 4 |
| 2009 | 4 | 4 |
| 2010 | 2 | 1 |
| 2011 | 3 | 2 |
| 2012 | 2 | 1 |
| 2013 | 0 | 1 |
| 2014 | 2 | 2 |
| 2015 | 4 | 3 |
| 2016 | 2 | 7 |
| 2017 | 6 | 9 |
| 2018 | 6 | 14 |
| 2019 | 14 | 5 |
| 2020 | 10 | 10 |
| 2021 | 9 | 6 |
| 2022 | 8 | 10 |
| 2023 | 5 | 3 |
| 2024 | 3 | 3 |
| 2025 | 3 | 7 |
| 2026 | 2 | 0 |
By publication year. 2026 runs to 8 Oct.
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
- Variable valve device24 Mar 2026US 12,584,426 B2Suzuki Motor Corporation
- System for synchronizing switching13 May 2025US 12,297,755 B2Eaton Intelligent Power Limited
- Rocker arm with a reset slider disposed in a lash adjustment assembly29 Apr 2025US 12,286,909 B2Jacobs Vehicle Systems, Inc.
- Rocker arm assembly with rotation-locking mechanism1 Apr 2025US 12,264,602 B2Eaton Intelligent Power Limited
- Variable displacement valvetrain systems with rocker shaft porting and insert sleeves for engine cylinder deactivation18 Dec 2025US 2025/0382903 A1GM Global Technology Operations LLC
- Engine brake hydraulic capsule with plunger return mechanism27 Nov 2025US 2025/0361823 A1Eaton Intelligent Power Limited
- Rocker system with stopper arrangement on cam side5 Jun 2025US 2025/0179944 A1Eaton Intelligent Power Limited
- Rocker arm assembly with rotation-locking mechanism29 May 2025US 2025/0172074 A1Eaton Intelligent Power Limited
- Variable valve device3 Apr 2025US 2025/0109699 A1Suzuki Motor Corporation
Most cited
By later US patents
- Cylinder deactivation apparatus63US 6,557,518 B1General Motors Corporation · 2003
- Control system for deactivation of valves in an internal combustion engine34US 6,439,176 B1Delphi Technologies, Inc. · 2002
- Combination PCV baffle and retainer for solenoid valves in a hydraulic manifold assembly for variable activation and deactivation of engine valves30US 6,591,796 B1Delphi Technologies, Inc. · 2003
- Individual hydraulic circuit modules for engine with hydraulically-controlled cylinder deactivation27US 6,584,951 B1General Motors Corporation · 2003
- Electro-hydraulic manifold assembly and method of making same for controlling de-activation of combustion chamber valves in a multicylinder engine24US 6,644,265 B2Eaton Corporation · 2003