H04R 2209/041
Voice coil arrangements comprising more than one voice coil unit on the
Official title: Voice coil arrangements comprising more than one voice coil unit on the same bobbin
H04R2209/041 (Voice coil arrangements comprising more than one voice coil unit on the) appears on 159 US grants and 194 published applications in this corpus.
Search patents in H04R- Granted patents
- 159
- Published applications
- 194
- Assignees
- 111
- Inventors
- 319
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 2 |
| 2004 | 3 | 1 |
| 2005 | 1 | 5 |
| 2006 | 2 | 2 |
| 2007 | 0 | 5 |
| 2008 | 1 | 5 |
| 2009 | 1 | 6 |
| 2010 | 4 | 2 |
| 2011 | 5 | 4 |
| 2012 | 2 | 3 |
| 2013 | 6 | 5 |
| 2014 | 2 | 11 |
| 2015 | 7 | 8 |
| 2016 | 12 | 9 |
| 2017 | 9 | 7 |
| 2018 | 3 | 8 |
| 2019 | 9 | 3 |
| 2020 | 6 | 22 |
| 2021 | 19 | 20 |
| 2022 | 11 | 9 |
| 2023 | 9 | 15 |
| 2024 | 16 | 15 |
| 2025 | 10 | 13 |
| 2026 | 8 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Multi-layer board actuator having a planar magnet and voice coil4 Aug 2026US 12,701,364 B2Apple Inc.
- Linear motor magnet assembly and loudspeaker unit2 Jun 2026US 12,647,733 B2Mayht Holding B.V.
- Electrodynamic actuator with vibration compensation and method of tuning a sound system with such an actuator26 May 2026US 12,641,371 B2Sound Solutions International (Zhenjiang) Co., Ltd.
- Loudspeakers26 May 2026US 12,641,386 B2GP Acoustics (UK) Limited
- Core, speaker module, and electronic device31 Mar 2026US 12,593,177 B2Beijing Honor Device Co., Ltd.
- Audio device, signal processing method, and display method27 Aug 2026US 2026/0255116 A1Sony Group Corporation
- System and method for a split-gap audio transducer13 Aug 2026US 2026/0238927 A1Tectonic Audio Labs, Inc.
- Sound Generator13 Aug 2026US 2026/0238928 A1AAC Microtech (Changzhou) Co., Ltd.
- Linear motor magnet assembly and loudspeaker unit6 Aug 2026US 2026/0230756 A1Mayht Holding B.V.
- Acoustic system16 Jul 2026US 2026/0205750 A1Alps Alpine Co., Ltd.
Most cited
By later US patents
- Loudspeaker system192US 4,504,704 APioneer Electronic Corporation · 1985
- Positionally sequenced loudspeaker system178US 8,284,982 B2Induction Speaker Technology, LLC · 2012
- Dual coil floating mass transducers137US 5,897,486 ASymphonix Devices, Inc. · 1999
- Dual coil floating mass transducers102US 6,475,134 B1Symphonix Devices, Inc. · 2002
- Dual diaphragm electroacoustic transducer95US 7,912,240 B2Sonion Nederland B. V. · 2011