H04R 15/02
Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency
H04R15/02 (Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency) appears on 15 US grants and 19 published applications in this corpus.
Search patents in H04R- Granted patents
- 15
- Published applications
- 19
- Assignees
- 16
- Inventors
- 37
- Latest grant
- 26 Apr 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 3 | 2 |
| 2003 | 0 | 1 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 3 |
| 2021 | 1 | 0 |
| 2022 | 1 | 0 |
By publication year.
Recent patents
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Most cited
By later US patents
- Incremental tuning process for electrical resonators based on mechanical motion27US 6,339,276 B12002
- Acoustic transducer panel25US 6,438,242 B1The United States of America as represented by the Secretary of the Navy · 2002
- Active housing broadband tonpilz transducer24US 6,690,621 B2Lockheed Martin Corporation · 2004
- Vibration wave detector20US 6,438,243 B1Sumitomo Metal Industries, Ltd. · 2002
- Audio signal system6US 7,978,867 B2Able Planet, Incorporated · 2011