G10K 2210/32271
Active resonators
G10K2210/32271 (Active resonators) appears on 22 US grants and 7 published applications in this corpus.
Search patents in G10K- Granted patents
- 22
- Published applications
- 7
- Assignees
- 19
- Inventors
- 60
- Latest grant
- 4 Aug 2020
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 3 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Vehicle and method for controlling thereof4 Aug 2020US 10,733,973 B2Hyundai Motor Company
- Rotor-stator blade interference noise reduction system and flying object10 Sep 2019US 10,408,129 B1Kabushiki Kaisha Toshiba
- Acoustic attenuation with adaptive impedance2 Jan 2018US 9,856,030 B2Rohr, Inc.
- Active control of membrane-type acoustic metamaterial23 May 2017US 9,659,557 B2The Hong Kong University of Science and Technology
- Metamaterial16 Aug 2016US 9,418,646 B2BAE SYSTEMS plc
- Vehicle and method for controlling thereof18 Jun 2020US 2020/0193956 A1Hyundai Motor Company
- Rotor-stator blade interference noise reduction system and flying object26 Sep 2019US 2019/0292983 A1Kabushiki Kaisha Toshiba
- Active control of membrane-type acoustic material6 Oct 2016US 2016/0293154 A1The Hong Kong University of Science and Technology
- Acoustic attenuation with adaptive impedance26 May 2016US 2016/0146039 A1Rohr, Inc.
- Metamaterial21 Jan 2016US 2016/0019879 A1BAE SYSTEMS plc
Most cited
By later US patents
- Active acoustic attenuator120US 4,473,906 ALord Corporation · 1984
- Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors73US 5,515,444 ACenter for Innovative Technology · 1996
- Method and apparatus for low frequency active attenuation58US 4,527,282 ASound Attenuators Limited · 1985
- Active control of aircraft engine inlet noise using compact sound sources and distributed error sensors56US 5,355,417 ACenter for Innovative Technology · 1994
- Active acoustic liner47US 5,498,127 AGeneral Electric Company · 1996