H04R 2307/207
Shape aspects of the outer suspension of loudspeaker diaphragms
H04R2307/207 (Shape aspects of the outer suspension of loudspeaker diaphragms) appears on 250 US grants and 274 published applications in this corpus.
Search patents in H04R- Granted patents
- 250
- Published applications
- 274
- Assignees
- 141
- Inventors
- 483
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 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 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 1 |
| 2002 | 2 | 4 |
| 2003 | 3 | 8 |
| 2004 | 4 | 5 |
| 2005 | 4 | 5 |
| 2006 | 1 | 7 |
| 2007 | 3 | 6 |
| 2008 | 7 | 9 |
| 2009 | 8 | 8 |
| 2010 | 4 | 8 |
| 2011 | 8 | 6 |
| 2012 | 12 | 8 |
| 2013 | 3 | 8 |
| 2014 | 9 | 5 |
| 2015 | 9 | 13 |
| 2016 | 16 | 22 |
| 2017 | 15 | 16 |
| 2018 | 10 | 13 |
| 2019 | 15 | 20 |
| 2020 | 18 | 27 |
| 2021 | 18 | 10 |
| 2022 | 12 | 11 |
| 2023 | 13 | 6 |
| 2024 | 13 | 27 |
| 2025 | 11 | 9 |
| 2026 | 13 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Audio transducer with high aspect ratio actuator4 Aug 2026US 12,701,365 B1Amazon Technologies, Inc.
- Open earphones16 Jun 2026US 12,659,651 B2Shenzhen Shokz Co., Ltd.
- Preparation method of a passive horn2 Jun 2026US 12,643,270 B2Tymphany Acoustic Technology (Huizhou) Co., Ltd.
- Earphones19 May 2026US 12,634,616 B2Shenzhen Shokz Co., Ltd.
- Suspension system for high-aspect ratio audio transducer24 Mar 2026US 12,587,770 B1Amazon Technologies, Inc.
- Electroacoustic transductor structure6 Aug 2026US 2026/0230755 A1Aac Kaitai Technologies (Wuhan) Co., Ltd
- A mems-based micro speaker device and system23 Jul 2026US 2026/0214393 A1Myvox AB
- Speaker Structure25 Jun 2026US 2026/0181310 A1Aac Kaitai Technologies (Wuhan) Co., Ltd
- Membrane support for dual backplate transducers11 Jun 2026US 2026/0159379 A1Infineon Technologies AG
- Micro-electro-mechanical systems transducer with deflection constraint11 Jun 2026US 2026/0164182 A1Knowles Electronics, LLC
Most cited
By later US patents
- Ultra low frequency transducer and loud speaker comprising same205US 6,611,604 B1Stillwater Designs and Audio, Inc. · 2003
- MEMS process and device157US 7,781,249 B2Wolfson Microelectronics plc · 2010
- MEMS process and device117US 7,856,804 B2Wolfson Microelectronics plc · 2010
- Pistonic motion, large excursion passive radiator68US 6,176,345 B1Mackie Designs Inc. · 2001
- Temperature/environment-resistant transducer suspension43US 5,455,396 AFord Motor Company · 1995