H04R 7/122
Comprising a plurality of sections or layers
Official title: {comprising a plurality of sections or layers}
H04R7/122 (Comprising a plurality of sections or layers) appears on 319 US grants and 366 published applications in this corpus.
Search patents in H04R- Granted patents
- 319
- Published applications
- 366
- Assignees
- 173
- Inventors
- 681
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 4 | 9 |
| 2003 | 7 | 4 |
| 2004 | 3 | 7 |
| 2005 | 2 | 7 |
| 2006 | 4 | 16 |
| 2007 | 3 | 13 |
| 2008 | 7 | 4 |
| 2009 | 5 | 8 |
| 2010 | 11 | 10 |
| 2011 | 6 | 9 |
| 2012 | 8 | 11 |
| 2013 | 6 | 6 |
| 2014 | 11 | 14 |
| 2015 | 11 | 16 |
| 2016 | 7 | 28 |
| 2017 | 26 | 19 |
| 2018 | 15 | 22 |
| 2019 | 21 | 26 |
| 2020 | 23 | 29 |
| 2021 | 17 | 18 |
| 2022 | 21 | 18 |
| 2023 | 12 | 24 |
| 2024 | 13 | 16 |
| 2025 | 17 | 18 |
| 2026 | 15 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mems microphone and electronic device15 Sep 2026US 12,739,572 B2Goertek Microelectronics Inc.
- Diaphragm for miniature sound-generating device, and miniature sound-generating device25 Aug 2026US 12,720,262 B2Goertek Inc.
- Systems and methods for improved acousto-haptic speakers11 Aug 2026US 12,707,190 B2Immerz, Inc.
- Variable stiffness diaphragm for a playback device23 Jun 2026US 12,666,212 B2Sonos, Inc.
- Speaker19 May 2026US 12,634,631 B2AAC Microtech (Changzhou) Co., Ltd.
- Bass loudspeaker20 Aug 2026US 2026/0247076 A1Pss Belgium NV
- Diaphragm for microspeaker and related processes23 Jul 2026US 2026/0214388 A13M Innovative Properties Company
- Loudspeaker, loudspeaker systems and method23 Jul 2026US 2026/0214389 A1Pss Belgium NV
- Speaker16 Jul 2026US 2026/0205738 A1Merry Electronics (Suzhou) Co., Ltd.
- Speaker Structure25 Jun 2026US 2026/0181310 A1Aac Kaitai Technologies (Wuhan) Co., Ltd
Most cited
By later US patents
- Ultra low frequency transducer and loud speaker comprising same205US 6,611,604 B1Stillwater Designs and Audio, Inc. · 2003
- Polyester laminated film55US 4,399,179 AToray Industries, Inc. · 1983
- Electro-acoustic transducer45US 4,410,768 ANippon Gakki Seizo Kabushiki Kaisha · 1983
- Shielded speaker44US 5,406,038 AMotorola, Inc. · 1995
- Evacuation of liquid from acoustic space41US 9,226,076 B2Apple Inc. · 2015