H04R 7/12
Non-planar diaphragms or cones
H04R7/12 (Non-planar diaphragms or cones) appears on 1,172 US grants and 1,353 published applications in this corpus.
Search patents in H04R- Granted patents
- 1,172
- Published applications
- 1,353
- Assignees
- 420
- Inventors
- 1,960
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 7 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 8 | 0 |
| 1983 | 9 | 0 |
| 1984 | 9 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 1 |
| 2002 | 8 | 18 |
| 2003 | 16 | 9 |
| 2004 | 10 | 16 |
| 2005 | 5 | 26 |
| 2006 | 9 | 32 |
| 2007 | 14 | 35 |
| 2008 | 14 | 21 |
| 2009 | 19 | 24 |
| 2010 | 18 | 26 |
| 2011 | 15 | 26 |
| 2012 | 29 | 31 |
| 2013 | 23 | 18 |
| 2014 | 23 | 35 |
| 2015 | 41 | 37 |
| 2016 | 17 | 56 |
| 2017 | 61 | 98 |
| 2018 | 69 | 106 |
| 2019 | 102 | 89 |
| 2020 | 74 | 124 |
| 2021 | 96 | 65 |
| 2022 | 65 | 85 |
| 2023 | 61 | 99 |
| 2024 | 88 | 115 |
| 2025 | 87 | 86 |
| 2026 | 60 | 75 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Loudspeaker and loudspeaker manufacturing method29 Sep 2026US 12,750,614 B2Panasonic Automotive Systems Co., Ltd.
- Mems microphone and electronic device15 Sep 2026US 12,739,572 B2Goertek Microelectronics Inc.
- Non-planar diamond body for a speaker dome15 Sep 2026US 12,739,582 B2Element Six Technologies Limited
- Acoustic output devices8 Sep 2026US 12,732,744 B2Shenzhen Shokz Co., Ltd.
- Diaphragm for miniature sound-generating device, and miniature sound-generating device25 Aug 2026US 12,720,262 B2Goertek Inc.
- Loudspeaker drive unit8 Oct 2026US 2026/0313287 A1Genelec Oy
- Loudspeaker with phase plug8 Oct 2026US 2026/0313292 A1Ask Industries Societa' Per Azioni
- Audio device with pressure equalization1 Oct 2026US 2026/0304028 A1Tymphany Hk Limited
- Loudspeaker with toroidal inflatable membrane1 Oct 2026US 2026/0304042 A1
- Acoustic output devices24 Sep 2026US 2026/0292391 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
- Positionally sequenced loudspeaker system178US 8,284,982 B2Induction Speaker Technology, LLC · 2012
- One-magnet rectangular transducer86US 7,254,248 B2Sonion Horsens A/S · 2007