H04R 2217/00
Details of magnetostrictive, piezoelectric, or electrostrictive transducers covered by h04r15/00 or h04r17/00
Official title: Details of magnetostrictive, piezoelectric, or electrostrictive transducers covered by H04R15/00 or H04R17/00 but not provided for in any of their subgroups
H04R2217/00 (Details of magnetostrictive, piezoelectric, or electrostrictive transducers covered by h04r15/00 or h04r17/00) appears on 471 US grants and 590 published applications in this corpus.
Search patents in H04R- Granted patents
- 471
- Published applications
- 590
- Assignees
- 221
- Inventors
- 859
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 3 |
| 2002 | 5 | 5 |
| 2003 | 5 | 9 |
| 2004 | 6 | 12 |
| 2005 | 2 | 21 |
| 2006 | 4 | 10 |
| 2007 | 10 | 22 |
| 2008 | 6 | 9 |
| 2009 | 6 | 6 |
| 2010 | 10 | 5 |
| 2011 | 10 | 7 |
| 2012 | 11 | 12 |
| 2013 | 4 | 30 |
| 2014 | 20 | 45 |
| 2015 | 32 | 44 |
| 2016 | 45 | 46 |
| 2017 | 46 | 20 |
| 2018 | 24 | 23 |
| 2019 | 24 | 34 |
| 2020 | 33 | 32 |
| 2021 | 31 | 32 |
| 2022 | 28 | 42 |
| 2023 | 29 | 38 |
| 2024 | 22 | 24 |
| 2025 | 26 | 28 |
| 2026 | 18 | 31 |
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.
- Shear mode transducer and methods15 Sep 2026US 12,739,569 B2The United States of America as represented by the Secretary of the Navy
- Systems and methods for providing augmented ultrasonic audio11 Aug 2026US 12,707,218 B2Bose Corporation
- Ultrasonic transducer and parametric speaker including the same4 Aug 2026US 12,701,366 B2Murata Manufacturing Co., Ltd.
- Continuous rail and airborne rail transit alert system for pedestrians, vehicles and animals28 Jul 2026US 12,691,820 B1The Fred M. Kemp Foundation
- Safe Case for Ultrasonic Voice Masking13 Aug 2026US 2026/0237371 A1Ppip, LLC
- Air-Pulse Generating Device and Driving Circuit with Anti-Fatigue Asymmetric Initial Deflection13 Aug 2026US 2026/0238930 A1xMEMS Labs, Inc.
- Acoustic system, acoustic system control method, and acoustic system manufacturing method23 Jul 2026US 2026/0214384 A1Panasonic Automotive Systems Co., Ltd.
- Driving Circuit and Air-Pulse Generating System with Asymmetric Initial Deflection16 Jul 2026US 2026/0205740 A1xMEMS Labs, Inc.
- Air-Pulse Generating Device with Asymmetric Initial Deflection16 Jul 2026US 2026/0205741 A1xMEMS Labs, Inc.
Most cited
By later US patents
- Parametric array for a head-mountable device319US 8,750,541 B1Google Inc. · 2014
- Method of manufacturing a mechanical resonating structure162US 9,762,202 B2Analog Devices, Inc. · 2017
- Lighted enhanced bullhorn109US 5,859,915 AAmerican Technology Corporation · 1999
- Directional loudspeaker system95US 4,823,908 AMatsushita Electric Industrial Co., Ltd. · 1989
- Acoustic heterodyne device and method93US 5,889,870 AAmerican Technology Corporation · 1999