H04R 3/08
Of electromagnetic transducers
Official title: of electromagnetic transducers
H04R3/08 (Of electromagnetic transducers) appears on 165 US grants and 168 published applications in this corpus.
Search patents in H04R- Granted patents
- 165
- Published applications
- 168
- Assignees
- 119
- Inventors
- 348
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 7 |
| 2006 | 0 | 0 |
| 2007 | 0 | 5 |
| 2008 | 0 | 2 |
| 2009 | 0 | 3 |
| 2010 | 0 | 3 |
| 2011 | 5 | 3 |
| 2012 | 3 | 5 |
| 2013 | 3 | 7 |
| 2014 | 5 | 5 |
| 2015 | 5 | 11 |
| 2016 | 14 | 14 |
| 2017 | 11 | 11 |
| 2018 | 16 | 15 |
| 2019 | 20 | 11 |
| 2020 | 12 | 6 |
| 2021 | 11 | 8 |
| 2022 | 5 | 9 |
| 2023 | 7 | 14 |
| 2024 | 8 | 9 |
| 2025 | 14 | 8 |
| 2026 | 2 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Audio signal processing method and apparatus, electronic device, and storage medium4 Aug 2026US 12,701,357 B2Vivo Mobile Communication Co., Ltd.
- In-canal hearing device including sealed vibratory transducer24 Feb 2026US 12,563,331 B2Starkey Laboratories, Inc.
- Adaptive resonance-controlled audio systems and methods16 Dec 2025US 12,501,217 B2Apple Inc.
- Speaker device and acoustic system18 Nov 2025US 12,477,275 B2Foster Electric Company, Limited
- Audio system4 Nov 2025US 12,464,283 B2Alps Alpine Co., Ltd.
- Loudspeakers and methods of use thereof1 Oct 2026US 2026/0304043 A1Brane Audio, LLC
- In-canal hearing device including sealed vibratory transducer25 Jun 2026US 2026/0181302 A1Starkey Laboratories, Inc.
- Signal Processing Method, Signal Processing System, and Speaker System18 Jun 2026US 2026/0172748 A1Yamaha Corporation
- Method, device, and system for generating a corrected audio signal18 Jun 2026US 2026/0172751 A1Y.E. Hub Armenia LLC
- Magnetic Audio Distortion Device18 Jun 2026US 2026/0172752 A1
Most cited
By later US patents
- Loudspeaker system192US 4,504,704 APioneer Electronic Corporation · 1985
- Speaker distortion reduction171US 9,307,321 B1Audience, Inc. · 2016
- Multi-resonant coupled system for flat panel actuation55US 10,264,348 B1NVF Tech Ltd · 2019
- Predictive protection arrangement for electroacoustic transducer50US 5,528,695 A1996
- Adaptive filter for correcting the transfer characteristic of electroacoustic transducer42US 5,694,476 A1997