H04R 7/20
Securing diaphragm or cone resiliently to support by flexible material, springs, cords
Official title: Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands
H04R7/20 (Securing diaphragm or cone resiliently to support by flexible material, springs, cords) appears on 539 US grants and 627 published applications in this corpus.
Search patents in H04R- Granted patents
- 539
- Published applications
- 627
- Assignees
- 254
- Inventors
- 1,102
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 5 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 7 | 4 |
| 2002 | 7 | 10 |
| 2003 | 7 | 11 |
| 2004 | 10 | 15 |
| 2005 | 10 | 14 |
| 2006 | 3 | 14 |
| 2007 | 8 | 10 |
| 2008 | 12 | 13 |
| 2009 | 8 | 12 |
| 2010 | 7 | 11 |
| 2011 | 12 | 18 |
| 2012 | 15 | 12 |
| 2013 | 10 | 11 |
| 2014 | 9 | 16 |
| 2015 | 20 | 33 |
| 2016 | 22 | 28 |
| 2017 | 27 | 39 |
| 2018 | 30 | 35 |
| 2019 | 38 | 45 |
| 2020 | 42 | 54 |
| 2021 | 43 | 19 |
| 2022 | 14 | 53 |
| 2023 | 32 | 46 |
| 2024 | 38 | 43 |
| 2025 | 37 | 34 |
| 2026 | 22 | 27 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Loudspeaker18 Aug 2026US 12,713,176 B2Panasonic Automotive Systems Co., Ltd.
- Audio transducer with high aspect ratio actuator4 Aug 2026US 12,701,365 B1Amazon Technologies, Inc.
- Vibration components with mass element and elastic element2 Jun 2026US 12,647,729 B2Shenzhen Shokz Co., Ltd.
- Vibration module, speaker having the same, and manufacturing method thereof2 Jun 2026US 12,647,730 B2Tymphany Hk Limited
- Passive radiator with adjustable working frequency12 May 2026US 12,627,921 B2Glass Acoustic Innovations Co., Ltd.
- Surround for a loudspeaker24 Sep 2026US 2026/0292406 A1Gss-Audio Grawe-Seebauer-Schneider Gdbr
- Sound generating unit and sound generating module13 Aug 2026US 2026/0238926 A1Goertek Inc.
- Electroacoustic transductor structure6 Aug 2026US 2026/0230755 A1Aac Kaitai Technologies (Wuhan) Co., Ltd
- Headrest for a motor vehicle seat9 Jul 2026US 2026/0192723 A1Treves Products, Services & Innovation
- Speaker including support structure and electronic device including the same9 Jul 2026US 2026/0197570 A1EM-TECH 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
- Vibration actuator having an elastic member between a suspension plate and a magnetic circuit device159US 6,850,138 B1NEC Tokin Corporation · 2005
- Concentric tube suspension system for loudspeakers48US 5,734,132 A1998
- Peripherally reinforced laminated loudspeaker diaphragm47US 4,198,550 ASony Corporation · 1980