H04R 2307/00
Details of diaphragms or cones for electromechanical transducers, their suspension or their
Official title: Details of diaphragms or cones for electromechanical transducers, their suspension or their manufacture covered by H04R7/00 or H04R31/003, not provided for in any of its subgroups
H04R2307/00 (Details of diaphragms or cones for electromechanical transducers, their suspension or their) appears on 1,061 US grants and 1,222 published applications in this corpus.
Search patents in H04R- Granted patents
- 1,061
- Published applications
- 1,222
- Assignees
- 458
- Inventors
- 2,028
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 28 | 10 |
| 2002 | 16 | 26 |
| 2003 | 17 | 17 |
| 2004 | 18 | 20 |
| 2005 | 15 | 23 |
| 2006 | 9 | 35 |
| 2007 | 14 | 35 |
| 2008 | 15 | 24 |
| 2009 | 15 | 31 |
| 2010 | 19 | 27 |
| 2011 | 28 | 39 |
| 2012 | 37 | 33 |
| 2013 | 27 | 22 |
| 2014 | 37 | 42 |
| 2015 | 37 | 58 |
| 2016 | 48 | 88 |
| 2017 | 68 | 83 |
| 2018 | 69 | 85 |
| 2019 | 75 | 66 |
| 2020 | 69 | 95 |
| 2021 | 59 | 68 |
| 2022 | 60 | 71 |
| 2023 | 57 | 49 |
| 2024 | 59 | 82 |
| 2025 | 39 | 55 |
| 2026 | 43 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04R 2307/025Diaphragms comprising polymeric materialsIndexing code381
- H04R 2307/029Diaphragms comprising fibresIndexing code261
- H04R 2307/207Shape aspects of the outer suspension of loudspeaker diaphragmsIndexing code250
- H04R 2307/023Diaphragms comprising ceramic-like materialsIndexing code237
- H04R 2307/027Diaphragms comprising metallic materialsIndexing code188
- H04R 2307/204Material aspects of the outer suspension of loudspeaker diaphragmsIndexing code122
- H04R 2307/021Diaphragms comprising cellulose-like materialsIndexing code121
- H04R 2307/201Damping aspects of the outer suspension of loudspeaker diaphragms by addition ofIndexing code64
Recent patents
- Micro speaker structure including diaphragm with locally thinner regions and method for forming the same22 Sep 2026US 12,745,043 B2Fortemedia, Inc.
- Ultrasonic transducer and parametric speaker including the same22 Sep 2026US 12,745,046 B2Murata Manufacturing Co., Ltd.
- Non-planar diamond body for a speaker dome15 Sep 2026US 12,739,582 B2Element Six Technologies Limited
- Acoustical transducer composite glass panel1 Sep 2026US 12,726,767 B2GM Global Technology Operations LLC
- Selective hydrophobic layer removal using UV irradiation with non-aligned mask25 Aug 2026US 12,715,758 B2InvenSense, Inc.
- Open earphones24 Sep 2026US 2026/0292393 A1Shenzhen Shokz Co., Ltd.
- Electoacoustic transducer17 Sep 2026US 2026/0281623 A1
- Oblong miniature receiver for hearing devices27 Aug 2026US 2026/0255106 A1Sonion Nederland B. V.
- Coaxial Speaker20 Aug 2026US 2026/0247079 A1AAC Microtech (Changzhou) Co., Ltd.
- Electrodynamic mems loudspeaker13 Aug 2026US 2026/0238924 A1Zhejiang Normal University
Most cited
By later US patents
- Acoustic device295US 6,332,029 B1New Transducers Limited · 2001
- Acoustic device206US 7,158,647 B2New Transducers Limited · 2007
- 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