H04R 19/02
Loudspeakers
Official title: Loudspeakers (H04R19/01 takes precedence)
H04R19/02 (Loudspeakers) appears on 444 US grants and 531 published applications in this corpus.
Search patents in H04R- Granted patents
- 444
- Published applications
- 531
- Assignees
- 191
- Inventors
- 783
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 7 | 6 |
| 2003 | 7 | 3 |
| 2004 | 7 | 4 |
| 2005 | 2 | 4 |
| 2006 | 6 | 9 |
| 2007 | 4 | 11 |
| 2008 | 6 | 7 |
| 2009 | 3 | 11 |
| 2010 | 5 | 15 |
| 2011 | 9 | 12 |
| 2012 | 12 | 14 |
| 2013 | 12 | 16 |
| 2014 | 16 | 26 |
| 2015 | 23 | 29 |
| 2016 | 24 | 35 |
| 2017 | 22 | 28 |
| 2018 | 24 | 28 |
| 2019 | 34 | 28 |
| 2020 | 39 | 36 |
| 2021 | 28 | 35 |
| 2022 | 27 | 22 |
| 2023 | 23 | 34 |
| 2024 | 25 | 36 |
| 2025 | 19 | 34 |
| 2026 | 36 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for generating an audio signal6 Oct 2026US 12,756,970 B2Sonicedge Ltd.
- Differential drive of a sound transducer system15 Sep 2026US 12,735,314 B2Robert Bosch GmbH
- Smart phone network for hearing impaired18 Aug 2026US 12,712,964 B2T-Mobile Innovations LLC
- Cylindrical mems structures for audio components18 Aug 2026US 12,713,185 B2Apple Inc.
- Multilayered electrostatic transducer11 Aug 2026US 12,707,206 B2Warwick Acoustics Limited
- Electronic devices and methods of manufacturing electronic devices1 Oct 2026US 2026/0296878 A1Amkor Technology Singapore Holding Pte. Ltd.
- Micro-speaker with integrated microphone and system1 Oct 2026US 2026/0304044 A1Vibrant Microsystems Inc.
- Miniature speaker24 Sep 2026US 2026/0292417 A1Sonion Nederland B. V.
- Foundry-compatible process for integrated micro-speaker and microphone17 Sep 2026US 2026/0281642 A1Vibrant Microsystems Inc.
- Multiple-sensor die arrangement10 Sep 2026US 2026/0270598 A1TDK U.S.A. Corporation
Most cited
By later US patents
- Electroactive polymer devices1,577US 6,545,384 B1SRI International · 2003
- Electroactive polymer electrodes1,515US 6,583,533 B2SRI International · 2003
- Electroactive polymer electrodes248US 6,376,971 B1SRI International · 2002
- Electroactive polymers213US 6,812,624 B1SRI International · 2004
- Electroactive polymer transducers and actuators151US 6,781,284 B1SRI International · 2004