H04R 25/405
By combining a plurality of transducers
Official title: {by combining a plurality of transducers}
H04R25/405 (By combining a plurality of transducers) appears on 514 US grants and 622 published applications in this corpus.
Search patents in H04R- Granted patents
- 514
- Published applications
- 622
- Assignees
- 163
- Inventors
- 876
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 7 |
| 2003 | 3 | 6 |
| 2004 | 5 | 9 |
| 2005 | 0 | 13 |
| 2006 | 5 | 9 |
| 2007 | 7 | 13 |
| 2008 | 9 | 13 |
| 2009 | 4 | 11 |
| 2010 | 5 | 12 |
| 2011 | 9 | 11 |
| 2012 | 12 | 10 |
| 2013 | 11 | 14 |
| 2014 | 17 | 23 |
| 2015 | 15 | 25 |
| 2016 | 31 | 26 |
| 2017 | 27 | 30 |
| 2018 | 28 | 39 |
| 2019 | 36 | 41 |
| 2020 | 41 | 40 |
| 2021 | 41 | 68 |
| 2022 | 47 | 42 |
| 2023 | 47 | 40 |
| 2024 | 31 | 50 |
| 2025 | 34 | 30 |
| 2026 | 27 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Audio enhancement method and apparatus, and computer storage medium25 Aug 2026US 12,718,831 B2Orka Health Co., Ltd.
- Feedback Canceller in a Hearing Assistance System8 Oct 2026US 2026/0313299 A1Legato Audio, Inc.
- Hearing aid or hearing aid system comprising a sound source localization estimator24 Sep 2026US 2026/0292409 A1Oticon A/S
- Hearing aid comprising a combined feedback and active noise cancellation system24 Sep 2026US 2026/0292410 A1Oticon A/S
- Sound processing device and sound processing system10 Sep 2026US 2026/0270624 A1Sony Group Corporation
- Ear-wearable device with machine-learning-assisted directionality10 Sep 2026US 2026/0270625 A1Starkey Laboratories, Inc.
Most cited
By later US patents
- Biocompatible fully implantable hearing aid transducers207US 6,068,589 A2000
- Noise protection verification device189US 6,567,524 B1Nacre AS · 2003
- Earphones with eyeglass attatchments158US 5,737,436 AInterval Research Corporation · 1998
- Directional hearing system156US 5,793,875 ACardinal Sound Labs, Inc. · 1998
- Hearing aid with locating microphones151US 4,773,095 ASiemens Aktiengesellschaft · 1988