F02B 27/001
The system having electrically controlled acoustic pulse generating devices
Official title: {the system having electrically controlled acoustic pulse generating devices, e.g. loudspeakers}
F02B27/001 (The system having electrically controlled acoustic pulse generating devices) appears on 16 US grants and 6 published applications in this corpus.
Search patents in F02B- Granted patents
- 16
- Published applications
- 6
- Assignees
- 14
- Inventors
- 35
- Latest grant
- 22 Jan 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Vehicle engine22 Jan 2019US 10,184,389 B2Hyundai Motor Company
- Mapped sound generator30 Aug 2016US 9,429,116 B2McLaren Automotive Limited
- Piston engine, method and use14 Oct 2014US 8,857,411 B2J. Eberspaecher GmbH & Co. KG
- Active air vent utilizing smart material actuation17 Dec 2013US 8,607,744 B2GM Global Technology Operations LLC
- Continuously variable intake manifold with an adjustable plenum4 Jan 2005US 6,837,204 B1Siemens VDO Automotive Corporation
- Vehicle engine15 Jun 2017US 2017/0167361 A1Hyundai Motor Company
- Mapped sound generator8 Aug 2013US 2013/0199487 A1McLaren Automotive Limited
- Electronic induction system tuning20 Jun 2013US 2013/0152907 A1Chrysler Group LLC
- Piston Engine, Method and Use3 Nov 2011US 2011/0265763 A1J. Eberspaecher GmbH & Co. KG
- Active air vent utilizing smart material actuation9 Jul 2009US 2009/0173305 A1GM Global Technology Operations LLC
Most cited
By later US patents
- Tuned Helmholtz resonator using cavity forcing34US 6,758,304 B1Siemens VDO Automotive Corporation · 2004
- Active noise control system29US 5,386,472 AGeneral Motors Corporation · 1995
- Direct fuel injection-type spark ignition internal combustion engine19US 6,341,591 B12002
- Electronically tuned intake manifold14US 5,048,470 AFord Motor Company · 1991
- Multi-frequency engine intake resonator12US 6,814,041 B1Fleetguard, Inc. · 2004