H04R 17/00
Piezoelectric transducers
Official title: Piezoelectric transducers; Electrostrictive transducers (piezoelectric or electrostrictive elements in general H10N30/00; details of piezoelectric or electrostrictive motors, generators or positioners {H10N30/00})
H04R17/00 (Piezoelectric transducers) appears on 3,143 US grants and 3,302 published applications in this corpus.
Search patents in H04R- Granted patents
- 3,143
- Published applications
- 3,302
- Assignees
- 1,009
- Inventors
- 4,985
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 26 | 0 |
| 1978 | 8 | 0 |
| 1979 | 11 | 0 |
| 1980 | 18 | 0 |
| 1981 | 12 | 0 |
| 1982 | 18 | 0 |
| 1983 | 27 | 0 |
| 1984 | 17 | 0 |
| 1985 | 10 | 0 |
| 1986 | 10 | 0 |
| 1987 | 18 | 0 |
| 1988 | 14 | 0 |
| 1989 | 21 | 0 |
| 1990 | 9 | 0 |
| 1991 | 12 | 0 |
| 1992 | 10 | 0 |
| 1993 | 20 | 0 |
| 1994 | 23 | 0 |
| 1995 | 20 | 0 |
| 1996 | 24 | 0 |
| 1997 | 24 | 0 |
| 1998 | 39 | 0 |
| 1999 | 27 | 0 |
| 2000 | 31 | 0 |
| 2001 | 43 | 14 |
| 2002 | 42 | 39 |
| 2003 | 42 | 47 |
| 2004 | 33 | 42 |
| 2005 | 31 | 53 |
| 2006 | 32 | 43 |
| 2007 | 27 | 55 |
| 2008 | 19 | 41 |
| 2009 | 35 | 47 |
| 2010 | 35 | 59 |
| 2011 | 27 | 52 |
| 2012 | 63 | 71 |
| 2013 | 53 | 83 |
| 2014 | 61 | 103 |
| 2015 | 111 | 186 |
| 2016 | 131 | 167 |
| 2017 | 151 | 140 |
| 2018 | 139 | 180 |
| 2019 | 168 | 196 |
| 2020 | 194 | 259 |
| 2021 | 186 | 236 |
| 2022 | 213 | 266 |
| 2023 | 232 | 342 |
| 2024 | 211 | 235 |
| 2025 | 236 | 205 |
| 2026 | 158 | 141 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sound apparatus and vehicular apparatus including the same6 Oct 2026US 12,756,963 B2LG Display Co., Ltd.
- Apparatus and display apparatus with enhanced vibration29 Sep 2026US 12,746,575 B2LG Display Co., Ltd.
- Apparatus including a rear cover having a hole29 Sep 2026US 12,750,622 B2LG Display Co., Ltd.
- Vibration apparatus22 Sep 2026US 12,744,021 B2LG Display Co., Ltd.
- Methods and apparatus to protect circuitry from overcurrent conditions22 Sep 2026US 12,744,375 B2Texas Instruments Incorporated
- Micro-speaker device8 Oct 2026US 2026/0313289 A1Infineon Technologies AG
- Downrigger Probe1 Oct 2026US 2026/0298720 A1Airmar Technology Corporation
- Diagnosis system for vehicle components1 Oct 2026US 2026/0298773 A1Magic Engineering Srl
- Ceramic speaker and manufacturing method therefor24 Sep 2026US 2026/0285766 A1Amosense Co., Ltd.
- Conversion of low amplitude voice detection to text24 Sep 2026US 2026/0290332 A1Augmental Technologies Inc.
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
- Acoustic sensor assembly794US 8,771,204 B2Masimo Corporation · 2014
- System and method for telemetrically providing intrabody spatial position621US 6,239,724 B1Remon Medical Technologies, Ltd. · 2001
- Acoustic sensor assembly550US 9,028,429 B2Masimo Corporation · 2015