H04R 9/02
Details
H04R9/02 (Details) appears on 3,555 US grants and 3,975 published applications in this corpus.
Search patents in H04R- Granted patents
- 3,555
- Published applications
- 3,975
- Assignees
- 914
- Inventors
- 4,433
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 14 | 0 |
| 1978 | 8 | 0 |
| 1979 | 10 | 0 |
| 1980 | 15 | 0 |
| 1981 | 18 | 0 |
| 1982 | 23 | 0 |
| 1983 | 19 | 0 |
| 1984 | 17 | 0 |
| 1985 | 15 | 0 |
| 1986 | 11 | 0 |
| 1987 | 4 | 0 |
| 1988 | 9 | 0 |
| 1989 | 16 | 0 |
| 1990 | 11 | 0 |
| 1991 | 13 | 0 |
| 1992 | 11 | 0 |
| 1993 | 17 | 0 |
| 1994 | 14 | 0 |
| 1995 | 15 | 0 |
| 1996 | 15 | 0 |
| 1997 | 19 | 0 |
| 1998 | 29 | 0 |
| 1999 | 23 | 0 |
| 2000 | 16 | 0 |
| 2001 | 44 | 15 |
| 2002 | 27 | 57 |
| 2003 | 41 | 36 |
| 2004 | 48 | 95 |
| 2005 | 35 | 75 |
| 2006 | 51 | 98 |
| 2007 | 43 | 97 |
| 2008 | 48 | 59 |
| 2009 | 37 | 81 |
| 2010 | 46 | 72 |
| 2011 | 67 | 91 |
| 2012 | 85 | 99 |
| 2013 | 81 | 91 |
| 2014 | 85 | 103 |
| 2015 | 99 | 127 |
| 2016 | 137 | 143 |
| 2017 | 134 | 190 |
| 2018 | 177 | 231 |
| 2019 | 214 | 224 |
| 2020 | 260 | 335 |
| 2021 | 250 | 285 |
| 2022 | 207 | 237 |
| 2023 | 204 | 266 |
| 2024 | 295 | 391 |
| 2025 | 266 | 275 |
| 2026 | 198 | 202 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sound device6 Oct 2026US 12,756,981 B2AAC Microtech (Changzhou) Co., Ltd.
- Loudspeaker and loudspeaker manufacturing method29 Sep 2026US 12,750,614 B2Panasonic Automotive Systems Co., Ltd.
- Micro speaker structure including diaphragm with locally thinner regions and method for forming the same22 Sep 2026US 12,745,043 B2Fortemedia, Inc.
- Dust cap illumination15 Sep 2026US 12,739,547 B2Harman International Industries, Incorporated
- Apparatus15 Sep 2026US 12,739,565 B2LG Display Co., Ltd.
- Full-bandwidth dual-sided speaker device8 Oct 2026US 2026/0313288 A1Merry Electronics (Suzhou) Co., Ltd.
- Loudspeaker with phase plug8 Oct 2026US 2026/0313292 A1Ask Industries Societa' Per Azioni
- Loudspeakers and methods of use thereof8 Oct 2026US 2026/0313298 A1Clean Energy Labs, LLC
- Full-bandwidth dual-sided speaker device1 Oct 2026US 2026/0304025 A1Merry Electronics (Suzhou) Co., Ltd.
- Full-bandwidth dual-sided speaker device1 Oct 2026US 2026/0304026 A1Merry Electronics (Suzhou) Co., Ltd.
Most cited
By later US patents
- Acoustic device295US 6,332,029 B1New Transducers Limited · 2001
- Mechanical vibrating element238US 4,421,381 AYokogawa Hokushin Electric Corporation · 1983
- 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