F01L 9/11
In which the action of a cam is being transmitted to a
Official title: in which the action of a cam is being transmitted to a valve by a liquid column
F01L9/11 (In which the action of a cam is being transmitted to a) appears on 354 US grants and 285 published applications in this corpus.
Search patents in F01L- Granted patents
- 354
- Published applications
- 285
- Assignees
- 104
- Inventors
- 565
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 6 | 0 |
| 1991 | 6 | 0 |
| 1992 | 14 | 0 |
| 1993 | 7 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 1 | 10 |
| 2003 | 12 | 15 |
| 2004 | 11 | 10 |
| 2005 | 10 | 15 |
| 2006 | 17 | 10 |
| 2007 | 8 | 6 |
| 2008 | 2 | 7 |
| 2009 | 7 | 17 |
| 2010 | 8 | 11 |
| 2011 | 10 | 16 |
| 2012 | 14 | 15 |
| 2013 | 11 | 15 |
| 2014 | 16 | 22 |
| 2015 | 19 | 11 |
| 2016 | 12 | 22 |
| 2017 | 14 | 16 |
| 2018 | 12 | 11 |
| 2019 | 14 | 18 |
| 2020 | 16 | 16 |
| 2021 | 13 | 6 |
| 2022 | 9 | 7 |
| 2023 | 6 | 3 |
| 2024 | 4 | 2 |
| 2025 | 2 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valvetrain component component comprising an overload feature14 Jul 2026US 12,680,482 B2Jacobs Vehicle Systems, Inc.
- Variable duration valve train9 Jun 2026US 12,650,087 B1
- Internal combustion engine with optimized intake system24 Feb 2026US 12,560,108 B2Dumarey Automotive Italia S.p.A.
- Lost motion variable valve actuation systems and method13 May 2025US 12,297,757 B2Jacobs Vehicle Systems, Inc.
- Multi-cylinder internal combustion engine, with cylinders equipped with intake valve variable actuation systems having hydraulic circuits which cross each other11 Mar 2025US 12,247,502 B2C. R. F. Societa Consortile per Azioni
- Valvetrain component component comprising an overload feature16 Apr 2026US 2026/0104000 A1Jacobs Vehicle Systems, Inc.
- Internal combustion engine with optimized intake system4 Dec 2025US 2025/0369374 A1Dumarey Automotive Italia S.p.A.
- Multi-cylinder internal combustion engine, with cylinders equipped with intake valve variable actuation systems having hydraulic circuits which cross each other16 Jan 2025US 2025/0020072 A1C. R. F. Societa Consortile per Azioni
- Valve actuators for specialized stationary two-piston hydraulic engines8 Feb 2024US 2024/0044267 A1Jiangsu Jointek Precision Machinery Co., Ltd.
- Driving devices for a composite engine valve of a dedicated driving cam8 Feb 2024US 2024/0044268 A1Jiangsu Jointek Precision Machinery Co., Ltd.
Most cited
By later US patents
- Internal combustion engines with combined cam and electro-hydraulic engine valve control86US 5,680,841 ADiesel Engine Retarders, Inc. · 1997
- System and method for controlling the amount of lost motion between an engine valve and a valve actuation means83US 5,829,397 ADiesel Engine Retarders, Inc. · 1998
- Multi-cylinder diesel engine with variable valve actuation74US 6,237,551 B1C. R. F. Societa Consortile per Azioni · 2001
- Four-cycle internal combustion engines with two-cycle compression release braking69US 5,537,976 ADiesel Engine Retarders, Inc. · 1996
- Device for varying a valve timing and lift for an internal combustion engine58US 4,696,265 AToyota Jidosha Kabushiki Kaisha · 1987