G10K 2210/32121
Fluid amplifiers
Official title: Fluid amplifiers, e.g. modulated gas flow speaker using electrovalves
G10K2210/32121 (Fluid amplifiers) appears on 13 US grants and 3 published applications in this corpus.
Search patents in G10K- Granted patents
- 13
- Published applications
- 3
- Assignees
- 11
- Inventors
- 28
- Latest grant
- 20 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- System and method for a speaking chamber with voice cancellation20 Feb 2024US 11,908,441 B1
- Plasma based noise reduction system17 Oct 2023US 11,790,881 B2Ecole Polytechnique Federale De Lausanne (Epfl)
- Fine jet control-type sound absorption system10 Aug 2004US 6,772,856 B2National Aerospace Laboratory of Japan
- Method for supplying a device or system with an alternating, pulsating, or cyclic flow of power or energy1 Aug 2000US 6,095,029 ADaimlerChrysler AG
- Jet engine fan noise reduction system utilizing electro pneumatic transducers31 Mar 1998US 5,732,547 AThe Boeing Company
- Plasma based noise reduction system19 Jan 2023US 2023/0020879 A1Ecole Polytechnique Federale De Lausanne (Epfl)
- Damping and actuating apparatus comprising magnetostrictive material, a vibration dampening device and use of said apparatus6 Jul 2006US 2006/0144472 A1
- Fine jet control-type sound absorption system9 Jan 2003US 2003/0006089 A1National Aerospace Laboratory of Japan
Most cited
By later US patents
- Acoustic abatement method and apparatus119US 3,936,606 A1976
- Adaptive noise silencing system of combustion apparatus72US 5,445,517 AMatsushita Electric Industrial Co., Ltd. · 1995
- Active gas turbine (jet) engine noise suppression67US 5,386,689 ANoises Off, Inc. · 1995
- Method and device for reducing the noise of turbo-machines40US 4,255,083 ASociete Nationale d'Etude et de Construction de Moteurs d'Aviation · 1981
- Jet engine fan noise reduction system utilizing electro pneumatic transducers31US 5,732,547 AThe Boeing Company · 1998