H04R 2307/025
Diaphragms comprising polymeric materials
H04R2307/025 (Diaphragms comprising polymeric materials) appears on 381 US grants and 509 published applications in this corpus.
Search patents in H04R- Granted patents
- 381
- Published applications
- 509
- Assignees
- 216
- Inventors
- 898
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 5 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 1 | 6 |
| 2006 | 1 | 10 |
| 2007 | 1 | 11 |
| 2008 | 2 | 5 |
| 2009 | 4 | 7 |
| 2010 | 5 | 6 |
| 2011 | 9 | 20 |
| 2012 | 13 | 13 |
| 2013 | 11 | 10 |
| 2014 | 9 | 21 |
| 2015 | 16 | 23 |
| 2016 | 20 | 42 |
| 2017 | 27 | 40 |
| 2018 | 32 | 45 |
| 2019 | 37 | 22 |
| 2020 | 29 | 48 |
| 2021 | 23 | 42 |
| 2022 | 32 | 36 |
| 2023 | 22 | 24 |
| 2024 | 33 | 31 |
| 2025 | 11 | 25 |
| 2026 | 19 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Micro speaker structure including diaphragm with locally thinner regions and method for forming the same22 Sep 2026US 12,745,043 B2Fortemedia, Inc.
- Diaphragm for miniature sound-generating device, and miniature sound-generating device25 Aug 2026US 12,720,262 B2Goertek Inc.
- Diaphragm, sound generation device, and method for manufacturing sound generation device11 Aug 2026US 12,707,216 B2LG Electronics Inc.
- Attachable microphone and manufacturing method therefor21 Jul 2026US 12,686,612 B2Center for Advanced Soft Electronics
- Vibration apparatus and apparatus including the same7 Jul 2026US 12,677,101 B2LG Display Co., Ltd.
- Electoacoustic transducer17 Sep 2026US 2026/0281623 A1
- Coaxial Speaker20 Aug 2026US 2026/0247079 A1AAC Microtech (Changzhou) Co., Ltd.
- Diaphragm for microspeaker and related processes23 Jul 2026US 2026/0214388 A13M Innovative Properties Company
- 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
Most cited
By later US patents
- Water resistant microphone86US 5,812,496 APeck/Pelissier Partnership · 1998
- Acoustic diaphragm and method for producing same51US 5,274,199 ASony Corporation · 1993
- Organic light emitting display device including a sound generating apparatus46US 9,818,805 B2LG Display Co., Ltd. · 2017
- Diaphragm-edge integral moldings for speakers and acoustic transducers comprising same37US 5,744,761 AMatsushita Electric Industrial Co., Ltd. · 1998
- Condenser microphone unit and condenser microphone32US 9,877,113 B2Kabushiki Kaisha Audio-Technica · 2018