F01L 9/00
Valve-gear or valve arrangements actuated non-mechanically
F01L9/00 (Valve-gear or valve arrangements actuated non-mechanically) appears on 2,017 US grants and 1,532 published applications in this corpus.
Search patents in F01L- Granted patents
- 2,017
- Published applications
- 1,532
- Assignees
- 437
- Inventors
- 2,592
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 10 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 8 | 0 |
| 1986 | 4 | 0 |
| 1987 | 13 | 0 |
| 1988 | 15 | 0 |
| 1989 | 30 | 0 |
| 1990 | 29 | 0 |
| 1991 | 33 | 0 |
| 1992 | 34 | 0 |
| 1993 | 32 | 0 |
| 1994 | 24 | 0 |
| 1995 | 14 | 0 |
| 1996 | 27 | 0 |
| 1997 | 32 | 0 |
| 1998 | 56 | 0 |
| 1999 | 41 | 0 |
| 2000 | 69 | 0 |
| 2001 | 110 | 56 |
| 2002 | 120 | 114 |
| 2003 | 119 | 119 |
| 2004 | 111 | 115 |
| 2005 | 83 | 120 |
| 2006 | 122 | 94 |
| 2007 | 81 | 93 |
| 2008 | 61 | 81 |
| 2009 | 52 | 75 |
| 2010 | 48 | 45 |
| 2011 | 50 | 35 |
| 2012 | 45 | 45 |
| 2013 | 41 | 47 |
| 2014 | 36 | 53 |
| 2015 | 41 | 35 |
| 2016 | 41 | 75 |
| 2017 | 49 | 54 |
| 2018 | 43 | 33 |
| 2019 | 45 | 57 |
| 2020 | 48 | 50 |
| 2021 | 48 | 46 |
| 2022 | 40 | 33 |
| 2023 | 34 | 23 |
| 2024 | 19 | 15 |
| 2025 | 18 | 10 |
| 2026 | 7 | 9 |
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.
- Carrier-less spring loaded planetary gearset used with eVCT8 Sep 2026US 12,729,635 B2BorgWarner Inc.
- 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
- Carrier-less spring loaded planetary gearset used with evct8 Oct 2026US 2026/0309063 A1BorgWarner Inc.
- Method to shut down an internal combustion engine27 Aug 2026US 2026/0251095 A1Volvo Truck Corporation
- Carrier-less spring loaded planetary gearset used with evct6 Aug 2026US 2026/0226852 A1BorgWarner Inc.
- Valve lift conversion control mechanism and valve system of engine9 Jul 2026US 2026/0193997 A1Weichai Power Co., Ltd.
- Linear actor with optimized inductivity and method of winding and connecting coils18 Jun 2026US 2026/0166700 A1Technische Universitaet Wien
Most cited
By later US patents
- Internal combustion engine with auxiliary combustion chamber1,410US 4,106,446 AKabushiki Kaisha Toyota Chuo Kenkyusho · 1978
- Electromagnetic actuator889US 6,366,441 B1Honda Giken Kogyo Kabushiki Kaisha · 2002
- 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