F01L 2001/0473
Composite camshafts
Official title: {Composite camshafts, e.g. with cams or cam sleeve being able to move relative to the inner camshaft or a cam adjusting rod}
F01L2001/0473 (Composite camshafts) appears on 363 US grants and 385 published applications in this corpus.
Search patents in F01L- Granted patents
- 363
- Published applications
- 385
- Assignees
- 85
- Inventors
- 490
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 4 | 0 |
| 2002 | 0 | 3 |
| 2003 | 0 | 0 |
| 2004 | 4 | 2 |
| 2005 | 1 | 3 |
| 2006 | 3 | 9 |
| 2007 | 7 | 10 |
| 2008 | 5 | 8 |
| 2009 | 5 | 16 |
| 2010 | 9 | 31 |
| 2011 | 12 | 19 |
| 2012 | 27 | 25 |
| 2013 | 23 | 21 |
| 2014 | 24 | 25 |
| 2015 | 24 | 19 |
| 2016 | 13 | 25 |
| 2017 | 23 | 51 |
| 2018 | 36 | 35 |
| 2019 | 43 | 32 |
| 2020 | 35 | 24 |
| 2021 | 20 | 10 |
| 2022 | 13 | 4 |
| 2023 | 4 | 5 |
| 2024 | 7 | 7 |
| 2025 | 4 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Shift gate, sliding cam system and camshaft20 May 2025US 12,305,543 B2thyssenkrupp AG
- Actuation system for an internal combustion engine4 Mar 2025US 12,241,390 B2Board of Trustees of Michigan State University
- System and method for determining position of axial cam shifting system11 Feb 2025US 12,221,911 B1Fca US LLC
- Sliding cam system for an internal combustion engine, comprising an integrated locking element14 Jan 2025US 12,196,112 B2thyssenkrupp AG
- Valve train device31 Dec 2024US 12,180,862 B2Ktm AG
- Control Method of Valve Opening and Closing20 Mar 2025US 2025/0092838 A1Hyundai Motor Company
- Shift gate, sliding cam system and camshaft26 Sep 2024US 2024/0318582 A1thyssenkrupp AG
- Variable phase mechanism15 Aug 2024US 2024/0271551 A1Mechadyne International Ltd.
- Valve train device25 Jul 2024US 2024/0247599 A1Ktm AG
- Actuation System For An Internal Combustion Engine27 Jun 2024US 2024/0209759 A1Board of Trustees of Michigan State University
Most cited
By later US patents
- Dual-acting apparatus for variable valve timing and the like87US 5,417,186 AClemson University · 1995
- Method for continuous camlobe phasing60US 4,771,742 AClemson University · 1988
- Variable phase drive mechanism47US 6,725,817 B2Mechadyne PLC · 2004
- Method of reducing pumping losses and improving brake specific fuel consumption for an internal combustion engine43US 4,917,058 AClemson University · 1990
- Camshaft for an internal combustion engine38US 4,332,222 AVolkswagenwerk Aktiengesellschaft · 1982