F01L 9/24
Piezoelectric actuators
F01L9/24 (Piezoelectric actuators) appears on 15 US grants and 15 published applications in this corpus.
Search patents in F01L- Granted patents
- 15
- Published applications
- 15
- Assignees
- 14
- Inventors
- 39
- Latest grant
- 18 May 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 6 |
| 2005 | 4 | 3 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Piezoelectric actuator and piezoelectric valve18 May 2021US 11,009,141 B2Sinfonia Technology Co., Ltd.
- Valve driving device using piezoelectric actuator20 Dec 2016US 9,523,294 B2Hyundai Motor Company
- Method for bounce suppression of a valve switched by a piezo actuator12 Nov 2013US 8,578,896 B2Robert Bosch GmbH
- System and method for actuating an engine valve25 Jul 2006US 7,080,615 B2Caterpillar Inc.
- Cold air super-charged internal combustion engine, working cycle and method4 Oct 2005US 6,951,211 B2
- Piezoelectric actuator and piezoelectric valve29 Aug 2019US 2019/0264827 A1Sinfonia Technology Co., Ltd.
- Fluid system4 Apr 2019US 2019/0101220 A1Microjet Technology Co., Ltd.
- A mechanism for effecting a displacement output19 May 2016US 2016/0138729 A1
- Valve driving device using piezoelectric actuator12 Nov 2015US 2015/0322829 A1Hyundai Motor Company
- Fuel supply device30 Aug 2012US 2012/0216779 A1Denso Corporation
Most cited
By later US patents
- Cold air super-charged internal combustion engine, working cycle and method69US 6,951,211 B22005
- Device for varying a valve timing and lift for an internal combustion engine58US 4,696,265 AToyota Jidosha Kabushiki Kaisha · 1987
- Valve operating mechanism for internal combustion and like-valved engines52US 4,593,658 A1986
- Apparatus and method for valve control50US 6,062,533 ASiemens Aktiengesellschaft · 2000
- Laminated type piezoelectric apparatus34US 5,209,453 ANippondenso Co., Ltd. · 1993