B81B 2201/0257
Microphones or microspeakers
B81B2201/0257 (Microphones or microspeakers) appears on 1,473 US grants and 1,801 published applications in this corpus.
Search patents in B81B- Granted patents
- 1,473
- Published applications
- 1,801
- Assignees
- 342
- Inventors
- 1,944
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 3 |
| 2002 | 5 | 3 |
| 2003 | 1 | 4 |
| 2004 | 4 | 11 |
| 2005 | 6 | 11 |
| 2006 | 7 | 10 |
| 2007 | 8 | 32 |
| 2008 | 12 | 33 |
| 2009 | 13 | 42 |
| 2010 | 28 | 55 |
| 2011 | 36 | 59 |
| 2012 | 40 | 47 |
| 2013 | 52 | 50 |
| 2014 | 78 | 85 |
| 2015 | 89 | 88 |
| 2016 | 82 | 106 |
| 2017 | 99 | 122 |
| 2018 | 98 | 141 |
| 2019 | 133 | 129 |
| 2020 | 140 | 134 |
| 2021 | 103 | 112 |
| 2022 | 104 | 135 |
| 2023 | 91 | 136 |
| 2024 | 85 | 91 |
| 2025 | 85 | 97 |
| 2026 | 68 | 65 |
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
- MEMS sensor with a thin region1 Sep 2026US 12,726,773 B2Skyworks Solutions, Inc.
- Mechanically coupled piezoelectric mems microphone25 Aug 2026US 12,715,759 B2Skyworks Solutions, Inc.
- Sound test device for, and a method of, testing a DUT, in particular a MEMS microphone25 Aug 2026US 12,715,760 B2Cohu GmbH
- Packaging method for mems acoustic device structure, mems acoustic device packaging structure and mems chip packaging method for acoustic device8 Oct 2026US 2026/0307982 A1Hefei Smat Technology Co., Ltd.
- Mems device1 Oct 2026US 2026/0296877 A1Infineon Technologies AG
- Electronic devices and methods of manufacturing electronic devices1 Oct 2026US 2026/0296878 A1Amkor Technology Singapore Holding Pte. Ltd.
- Sound Producing Device and Sound Producing Package17 Sep 2026US 2026/0274652 A1xMEMS Labs, Inc.
- Foundry-compatible process for integrated micro-speaker and microphone17 Sep 2026US 2026/0281642 A1Vibrant Microsystems Inc.
Most cited
By later US patents
- Microelectromechanical system package with environmental and interference shield293US 6,781,231 B2Knowles Electronics, LLC · 2004
- Miniature silicon condenser microphone268US 5,870,482 AKnowles Electronics, LLC · 1999
- Miniature silicon condenser microphone190US 7,166,910 B2Knowles Electronics, LLC · 2007
- Solid state condenser and microphone devices185US 5,490,220 AKnowles Electronics, LLC · 1996
- MEMS process and device157US 7,781,249 B2Wolfson Microelectronics plc · 2010