H04R 2217/01
Non-planar magnetostrictive, piezoelectric or electrostrictive benders
H04R2217/01 (Non-planar magnetostrictive, piezoelectric or electrostrictive benders) appears on 66 US grants and 81 published applications in this corpus.
Search patents in H04R- Granted patents
- 66
- Published applications
- 81
- Assignees
- 52
- Inventors
- 165
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 4 | 4 |
| 2005 | 0 | 2 |
| 2006 | 2 | 0 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 2 | 1 |
| 2013 | 0 | 2 |
| 2014 | 2 | 8 |
| 2015 | 5 | 9 |
| 2016 | 6 | 10 |
| 2017 | 15 | 5 |
| 2018 | 4 | 3 |
| 2019 | 2 | 3 |
| 2020 | 1 | 2 |
| 2021 | 2 | 3 |
| 2022 | 4 | 3 |
| 2023 | 2 | 7 |
| 2024 | 2 | 3 |
| 2025 | 3 | 3 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Shear mode transducer and methods15 Sep 2026US 12,739,569 B2The United States of America as represented by the Secretary of the Navy
- Highly sensitive acoustic fabric including an acoustic fiber transducer16 Jun 2026US 12,655,548 B2Massachusetts Institute of Technology
- Audio device and driving method thereof, and display device10 Jun 2025US 12,329,034 B2Sony Group Corporation
- Jig for assembly of segments into a ring geometry18 Mar 2025US 12,256,193 B1The United States of America as represented by the Secretary of the Navy
- Devices, systems, and methods for noise reduction25 Feb 2025US 12,232,857 B2Shanghai United Imaging Healthcare Co., Ltd.
- Driver unit and headphone7 May 2026US 2026/0129372 A1FUJIFILM Corporation
- Three-dimensional textured ceramic piezoelectric transducers and methods of forming same5 Feb 2026US 2026/0040826 A1L3Harris Technologies, Inc.
- In-Line Focused Acoustic Energy Transducer and Methods of Use4 Dec 2025US 2025/0373989 A1Product Systems Incorporated
- Antibacterial electric toothbrush based on pulsed ultrasonic piezoelectric response principle, and antibacterial method27 Nov 2025US 2025/0359973 A1Beijing Piezo-Dent Medical Technology Co., Ltd
- Shear Mode Transducer and Methods24 Jul 2025US 2025/0240577 A1The United States of America as represented by the Secretary of the Navy
Most cited
By later US patents
- Piezoelectric speaker38US 5,736,808 AAura Systems, Inc. · 1998
- Electro active devices35US 6,833,656 B21 . . . Limited · 2004
- Mechanical-to-acoustical transformer and multi-media flat film speaker29US 7,038,356 B2Unison Products, Inc. · 2006
- Loudspeaker27US 7,302,068 B21 . . . Limited · 2007
- Screen sounder24US 9,107,006 B2AAC Technologies PTE.Ltd. · 2015