H04R 2440/07
Loudspeakers using bending wave resonance and pistonic motion to generate sound
H04R2440/07 (Loudspeakers using bending wave resonance and pistonic motion to generate sound) appears on 100 US grants and 91 published applications in this corpus.
Search patents in H04R- Granted patents
- 100
- Published applications
- 91
- Assignees
- 47
- Inventors
- 149
- Latest grant
- 20 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 15 | 2 |
| 2002 | 5 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 1 | 3 |
| 2006 | 0 | 3 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 4 |
| 2010 | 1 | 2 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 1 | 3 |
| 2015 | 5 | 5 |
| 2016 | 6 | 3 |
| 2017 | 3 | 3 |
| 2018 | 3 | 5 |
| 2019 | 5 | 11 |
| 2020 | 15 | 19 |
| 2021 | 15 | 8 |
| 2022 | 4 | 4 |
| 2023 | 7 | 4 |
| 2024 | 4 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air-pulse generating device with efficient propagation20 May 2025US 12,309,548 B2xMEMS Labs, Inc.
- Display apparatus1 Apr 2025US 12,267,657 B2LG Display Co., Ltd.
- Systems and methods for controlling plate loudspeakers using modal crossover networks17 Sep 2024US 12,096,193 B2University of Rochester
- Display apparatus23 Jul 2024US 12,047,743 B2LG Display Co., Ltd.
- Surface sound-emitting apparatus and electronic device19 Mar 2024US 11,937,060 B2Goertek Inc.
- A mems-based micro speaker device and system23 Jul 2026US 2026/0214393 A1Myvox AB
- Electronic device19 Feb 2026US 2026/0052331 A1Harman International Industries, Incorporated
- Systems and methods for controlling plate loudspeakers using modal crossover networks20 Mar 2025US 2025/0097642 A1University of Rochester
- Display apparatus30 May 2024US 2024/0179468 A1LG Display Co., Ltd.
- Systems and methods for controlling plate loudspeakers using modal crossover networks30 Nov 2023US 2023/0388708 A1University of Rochester
Most cited
By later US patents
- Acoustic device295US 6,332,029 B1New Transducers Limited · 2001
- Acoustic device206US 7,158,647 B2New Transducers Limited · 2007
- Flat panel displaying and sounding system integrating flat panel display with flat panel sounding unit array79US 8,879,766 B12014
- Panel-form loudspeakers75US 6,198,831 B1New Transducers Limited · 2001
- Ceiling tile loudspeaker68US 6,215,881 B1New Transducers Limited · 2001