H04R 7/26
Damping by means acting directly on free portion of diaphragm or cone
Official title: Damping by means acting directly on free portion of diaphragm or cone (air damping H04R1/28)
H04R7/26 (Damping by means acting directly on free portion of diaphragm or cone) appears on 184 US grants and 212 published applications in this corpus.
Search patents in H04R- Granted patents
- 184
- Published applications
- 212
- Assignees
- 126
- Inventors
- 455
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 3 |
| 2008 | 0 | 1 |
| 2009 | 2 | 3 |
| 2010 | 2 | 2 |
| 2011 | 0 | 6 |
| 2012 | 1 | 4 |
| 2013 | 3 | 7 |
| 2014 | 10 | 5 |
| 2015 | 5 | 9 |
| 2016 | 9 | 14 |
| 2017 | 11 | 14 |
| 2018 | 12 | 15 |
| 2019 | 10 | 8 |
| 2020 | 8 | 25 |
| 2021 | 20 | 14 |
| 2022 | 13 | 22 |
| 2023 | 14 | 20 |
| 2024 | 14 | 19 |
| 2025 | 11 | 7 |
| 2026 | 10 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vibration apparatus and apparatus including the same7 Jul 2026US 12,677,101 B2LG Display Co., Ltd.
- Microphone chip and microphone30 Jun 2026US 12,671,928 B2AAC Technologies PTE.Ltd.
- Vibration module, speaker having the same, and manufacturing method thereof2 Jun 2026US 12,647,730 B2Tymphany Hk Limited
- Vibration sensor12 May 2026US 12,627,916 B2Shenzhen Shokz Co., Ltd.
- Sound apparatus having vibration devices28 Apr 2026US 12,615,477 B2LG Display Co., Ltd.
- Electrodynamic loudspeaker with micro-electromechanical system30 Jul 2026US 2026/0222742 A1Zhejiang Normal University
- Micro-electro-mechanical systems transducer with deflection constraint11 Jun 2026US 2026/0164182 A1Knowles Electronics, LLC
- Speaker Diaphragm and Speaker4 Jun 2026US 2026/0156416 A1Yamaha Corporation
- Woven fabric7 May 2026US 2026/0125829 A1Nbc Meshtec Inc.
- Anti-Feedback Audio Device With Dipole Speaker And Neural Network(S)30 Apr 2026US 2026/0122423 A1Sony Interactive Entertainment Inc.
Most cited
By later US patents
- Speaker enclosure103US 4,805,729 A1989
- Planar diaphragm loudspeaker with counteractive weights44US 5,615,275 ASound Advance Systems, Inc. · 1997
- Electro-acoustic transducer with active dome36US 4,440,983 AThomson-CSF · 1984
- Woofer loudspeaker31US 4,301,332 A1981
- Loudspeaker30US 4,252,211 ASony Corporation · 1981