H04R 19/00
Electrostatic transducers
H04R19/00 (Electrostatic transducers) appears on 3,484 US grants and 3,973 published applications in this corpus.
Search patents in H04R- Granted patents
- 3,484
- Published applications
- 3,973
- Assignees
- 838
- Inventors
- 4,275
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 14 | 0 |
| 1977 | 10 | 0 |
| 1978 | 7 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 18 | 0 |
| 1982 | 11 | 0 |
| 1983 | 17 | 0 |
| 1984 | 18 | 0 |
| 1985 | 15 | 0 |
| 1986 | 13 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 11 | 0 |
| 1990 | 5 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 12 | 0 |
| 2001 | 14 | 10 |
| 2002 | 20 | 42 |
| 2003 | 24 | 41 |
| 2004 | 36 | 32 |
| 2005 | 29 | 58 |
| 2006 | 36 | 82 |
| 2007 | 47 | 109 |
| 2008 | 38 | 103 |
| 2009 | 39 | 129 |
| 2010 | 65 | 150 |
| 2011 | 96 | 156 |
| 2012 | 145 | 143 |
| 2013 | 140 | 162 |
| 2014 | 182 | 171 |
| 2015 | 175 | 252 |
| 2016 | 224 | 253 |
| 2017 | 241 | 266 |
| 2018 | 205 | 270 |
| 2019 | 282 | 233 |
| 2020 | 240 | 255 |
| 2021 | 194 | 209 |
| 2022 | 196 | 201 |
| 2023 | 183 | 231 |
| 2024 | 154 | 155 |
| 2025 | 150 | 141 |
| 2026 | 98 | 119 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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
- Electromechanical system comprising two movable elements side by side15 Sep 2026US 12,739,571 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Mems microphone and electronic device15 Sep 2026US 12,739,572 B2Goertek Microelectronics Inc.
- Micro-electro-mechanical systems microphone with increased back volume8 Sep 2026US 12,732,742 B2Knowles Electronics, LLC
- Electronic devices and methods of manufacturing electronic devices1 Oct 2026US 2026/0296878 A1Amkor Technology Singapore Holding Pte. Ltd.
- Manufacturing a microphone by bonding layers1 Oct 2026US 2026/0296881 A1InvenSense, Inc.
- Micro-speaker with integrated microphone and system1 Oct 2026US 2026/0304044 A1Vibrant Microsystems Inc.
- Method and system for recognizing a squeal noise of a vehicle24 Sep 2026US 2026/0290092 A1Hyundai Motor Company
- Miniature speaker24 Sep 2026US 2026/0292417 A1Sonion Nederland B. V.
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
- Ear microphone340US 4,588,867 A1986
- Microelectromechanical system package with environmental and interference shield293US 6,781,231 B2Knowles Electronics, LLC · 2004
- Receiver communications for wireless power transfer291US 9,001,622 B2uBeam Inc. · 2015