H04R 2307/029
Diaphragms comprising fibres
H04R2307/029 (Diaphragms comprising fibres) appears on 261 US grants and 247 published applications in this corpus.
Search patents in H04R- Granted patents
- 261
- Published applications
- 247
- Assignees
- 136
- Inventors
- 516
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 19 | 6 |
| 2002 | 8 | 13 |
| 2003 | 9 | 5 |
| 2004 | 8 | 6 |
| 2005 | 6 | 11 |
| 2006 | 4 | 12 |
| 2007 | 5 | 15 |
| 2008 | 3 | 12 |
| 2009 | 5 | 11 |
| 2010 | 11 | 9 |
| 2011 | 16 | 10 |
| 2012 | 10 | 12 |
| 2013 | 8 | 4 |
| 2014 | 9 | 4 |
| 2015 | 5 | 8 |
| 2016 | 5 | 13 |
| 2017 | 12 | 6 |
| 2018 | 7 | 14 |
| 2019 | 9 | 7 |
| 2020 | 12 | 12 |
| 2021 | 4 | 9 |
| 2022 | 8 | 8 |
| 2023 | 5 | 5 |
| 2024 | 14 | 20 |
| 2025 | 6 | 6 |
| 2026 | 11 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Diaphragm, sound generation device, and method for manufacturing sound generation device11 Aug 2026US 12,707,216 B2LG Electronics Inc.
- Open earphones16 Jun 2026US 12,659,651 B2Shenzhen Shokz Co., Ltd.
- Pressure wave generating element and method for producing the same26 May 2026US 12,641,376 B2Murata Manufacturing Co., Ltd.
- Earphones19 May 2026US 12,634,616 B2Shenzhen Shokz Co., Ltd.
- Multi-cone speaker28 Apr 2026US 12,615,478 B2Suzhou Sonavox Electronics Co., Ltd.
- Diaphragm for microspeaker and related processes23 Jul 2026US 2026/0214388 A13M Innovative Properties Company
- Open earphones4 Jun 2026US 2026/0156396 A1Shenzhen Shokz Co., Ltd.
- Speaker Diaphragm and Speaker4 Jun 2026US 2026/0156416 A1Yamaha Corporation
- Speaker Diaphragm and Method for Manufacturing Speaker Diaphragm28 May 2026US 2026/0149929 A1Yamaha Corporation
- Sound production components21 May 2026US 2026/0143284 A1Shenzhen Shokz Co., Ltd.
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
- Loudspeakers comprising panel-form acoustic radiating elements84US 6,144,746 ANew Transducers Limited · 2000
- Acoustic transducer81US 4,928,312 A1990