H04R 2307/201
Damping aspects of the outer suspension of loudspeaker diaphragms by addition of
Official title: Damping aspects of the outer suspension of loudspeaker diaphragms by addition of additional damping means
H04R2307/201 (Damping aspects of the outer suspension of loudspeaker diaphragms by addition of) appears on 64 US grants and 73 published applications in this corpus.
Search patents in H04R- Granted patents
- 64
- Published applications
- 73
- Assignees
- 55
- Inventors
- 143
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 1 |
| 2002 | 1 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 1 |
| 2005 | 2 | 4 |
| 2006 | 0 | 5 |
| 2007 | 3 | 3 |
| 2008 | 1 | 3 |
| 2009 | 4 | 3 |
| 2010 | 0 | 1 |
| 2011 | 4 | 3 |
| 2012 | 2 | 1 |
| 2013 | 1 | 2 |
| 2014 | 3 | 1 |
| 2015 | 1 | 5 |
| 2016 | 3 | 3 |
| 2017 | 4 | 5 |
| 2018 | 5 | 4 |
| 2019 | 3 | 3 |
| 2020 | 4 | 5 |
| 2021 | 2 | 3 |
| 2022 | 3 | 3 |
| 2023 | 0 | 2 |
| 2024 | 4 | 3 |
| 2025 | 2 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Acoustic device295US 6,332,029 B1New Transducers Limited · 2001
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- Ultra low frequency transducer and loud speaker comprising same205US 6,611,604 B1Stillwater Designs and Audio, Inc. · 2003
- Acoustic device38US 7,194,098 B2New Transducers Limited · 2007
- Broad-band acoustic speaker34US 3,983,337 ABabbco, Ltd. · 1976