F01L 13/0036
The valves being driven by two or more cams with different shape
Official title: {the valves being driven by two or more cams with different shape, size or timing or a single cam profiled in axial and radial direction}
F01L13/0036 (The valves being driven by two or more cams with different shape) appears on 1,161 US grants and 1,058 published applications in this corpus.
Search patents in F01L- Granted patents
- 1,161
- Published applications
- 1,058
- Assignees
- 215
- Inventors
- 1,535
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 7 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 9 | 0 |
| 1993 | 12 | 0 |
| 1994 | 14 | 0 |
| 1995 | 18 | 0 |
| 1996 | 9 | 0 |
| 1997 | 16 | 0 |
| 1998 | 19 | 0 |
| 1999 | 20 | 0 |
| 2000 | 21 | 0 |
| 2001 | 19 | 6 |
| 2002 | 21 | 18 |
| 2003 | 19 | 19 |
| 2004 | 12 | 32 |
| 2005 | 33 | 30 |
| 2006 | 31 | 29 |
| 2007 | 28 | 38 |
| 2008 | 28 | 35 |
| 2009 | 13 | 48 |
| 2010 | 22 | 58 |
| 2011 | 41 | 47 |
| 2012 | 53 | 55 |
| 2013 | 42 | 54 |
| 2014 | 50 | 49 |
| 2015 | 63 | 68 |
| 2016 | 42 | 63 |
| 2017 | 67 | 73 |
| 2018 | 55 | 92 |
| 2019 | 89 | 79 |
| 2020 | 99 | 59 |
| 2021 | 59 | 39 |
| 2022 | 26 | 21 |
| 2023 | 13 | 9 |
| 2024 | 22 | 20 |
| 2025 | 16 | 8 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Engine valve control system and method24 Mar 2026US 12,584,425 B1
- Variable valve device24 Mar 2026US 12,584,426 B2Suzuki Motor Corporation
- Method to perform rebreathe mode transitions17 Feb 2026US 12,553,398 B2Saudi Arabian Oil Company
- Interchangeable engine assembly10 Feb 2026US 12,546,270 B2Arctic Cat Inc.
- Electromagnetic actuating device and camshaft adjuster with an electromagnetic actuating device27 Jan 2026US 12,537,124 B2Schaeffler Technologies AG & Co. KG
- Engine13 Aug 2026US 2026/0235053 A1Ishikawa Energy Research Co., Ltd.
- Engine braking device with returning and limiting functions and engine30 Jul 2026US 2026/0218633 A1Zhejiang Liming Intelligent Manufacturing Co., Ltd.
- Deactivation mechanism and associated valve events for divided exhaust boost (deb) engine23 Jul 2026US 2026/0210303 A1Aramco Services Company
- Cylinder deactivation system25 Jun 2026US 2026/0176991 A1
- Interchangeable engine assembly18 Jun 2026US 2026/0168462 A1Arctic Cat Inc.
Most cited
By later US patents
- Method for shutting down and restarting individual cylinders of an engine100US 5,803,040 AMercedes-Benz AG · 1998
- Engine valve control mechanism88US 4,151,817 AEaton Corporation · 1979
- Engine valve control mechanism88US 4,203,397 AEaton Corporation · 1980
- Dual-acting apparatus for variable valve timing and the like87US 5,417,186 AClemson University · 1995
- Engine valve control mechanism78US 4,762,096 AEaton Corporation · 1988