F01L 9/10
Valve-gear or valve arrangements actuated non-mechanically: by fluid means
Official title: by fluid means, e.g. hydraulic
F01L9/10 (Valve-gear or valve arrangements actuated non-mechanically: by fluid means) appears on 1,001 US grants and 818 published applications in this corpus.
Search patents in F01L- Granted patents
- 1,001
- Published applications
- 818
- Assignees
- 247
- Inventors
- 1,416
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 7 | 0 |
| 1989 | 16 | 0 |
| 1990 | 16 | 0 |
| 1991 | 16 | 0 |
| 1992 | 20 | 0 |
| 1993 | 23 | 0 |
| 1994 | 13 | 0 |
| 1995 | 12 | 0 |
| 1996 | 18 | 0 |
| 1997 | 17 | 0 |
| 1998 | 20 | 0 |
| 1999 | 13 | 0 |
| 2000 | 17 | 0 |
| 2001 | 31 | 8 |
| 2002 | 24 | 42 |
| 2003 | 43 | 57 |
| 2004 | 50 | 64 |
| 2005 | 55 | 59 |
| 2006 | 54 | 41 |
| 2007 | 33 | 30 |
| 2008 | 22 | 36 |
| 2009 | 20 | 36 |
| 2010 | 20 | 30 |
| 2011 | 25 | 25 |
| 2012 | 27 | 31 |
| 2013 | 29 | 37 |
| 2014 | 31 | 39 |
| 2015 | 32 | 24 |
| 2016 | 27 | 48 |
| 2017 | 29 | 36 |
| 2018 | 27 | 18 |
| 2019 | 29 | 42 |
| 2020 | 35 | 33 |
| 2021 | 32 | 23 |
| 2022 | 22 | 21 |
| 2023 | 21 | 15 |
| 2024 | 11 | 12 |
| 2025 | 13 | 6 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve lift conversion control mechanism and valve system of engine29 Sep 2026US 12,747,682 B2Weichai Power Co., Ltd.
- Valvetrain component component comprising an overload feature14 Jul 2026US 12,680,482 B2Jacobs Vehicle Systems, Inc.
- Valve actuation system for providing valve actuation motions for late/early intake valve closing and internal EGR30 Jun 2026US 12,669,074 B2Jacobs Vehicle Systems, Inc.
- Variable duration valve train9 Jun 2026US 12,650,087 B1
- Camless reciprocating engine control system10 Mar 2026US 12,571,356 B2Adaptive Camless Technology, LLC
- Method to shut down an internal combustion engine27 Aug 2026US 2026/0251095 A1Volvo Truck Corporation
- Valve lift conversion control mechanism and valve system of engine9 Jul 2026US 2026/0193997 A1Weichai Power Co., Ltd.
- Valvetrain component component comprising an overload feature16 Apr 2026US 2026/0104000 A1Jacobs Vehicle Systems, Inc.
- Internal combustion engine configured for use with solid or slow burning fuels, and methods of operating or implementing same19 Feb 2026US 2026/0049570 A1
- Apparatus comprising a plurality of tools each having at least one hydraulic chamber for hydraulic liquid29 Jan 2026US 2026/0028923 A1Freevalve AB
Most cited
By later US patents
- Internal combustion engine with auxiliary combustion chamber1,410US 4,106,446 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1978
- Skip-cycle strategies for four cycle engine202US 5,377,631 AFord Motor Company · 1995
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Programmed valve system for internal combustion engine169US 4,009,695 A1977
- Engine having a high pressure hydraulic system and low pressure lubricating system131US 6,067,962 ACaterpillar Inc. · 2000