H04R 7/14
Corrugated, pleated or ribbed
Official title: corrugated, pleated or ribbed
H04R7/14 (Corrugated, pleated or ribbed) appears on 189 US grants and 235 published applications in this corpus.
Search patents in H04R- Granted patents
- 189
- Published applications
- 235
- Assignees
- 119
- Inventors
- 425
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 3 | 2 |
| 2004 | 1 | 2 |
| 2005 | 2 | 2 |
| 2006 | 0 | 5 |
| 2007 | 1 | 9 |
| 2008 | 4 | 4 |
| 2009 | 4 | 5 |
| 2010 | 0 | 8 |
| 2011 | 4 | 5 |
| 2012 | 5 | 9 |
| 2013 | 8 | 6 |
| 2014 | 6 | 6 |
| 2015 | 9 | 8 |
| 2016 | 5 | 15 |
| 2017 | 12 | 22 |
| 2018 | 11 | 14 |
| 2019 | 17 | 18 |
| 2020 | 15 | 15 |
| 2021 | 15 | 14 |
| 2022 | 14 | 14 |
| 2023 | 12 | 10 |
| 2024 | 7 | 17 |
| 2025 | 11 | 11 |
| 2026 | 3 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Integrated sounding device21 Apr 2026US 12,610,181 B2AAC Microtech (Changzhou) Co., Ltd.
- Sound device24 Mar 2026US 12,587,792 B2AAC Microtech (Changzhou) Co., Ltd.
- Piezoelectric microelectromechanical system microphone27 Jan 2026US 12,538,080 B2Skyworks Solutions, Inc.
- Diaphragm with deformation structures to reduce vibration magnitude at resonance frequency23 Dec 2025US 12,507,012 B2Glass Acoustic Innovations Co., Ltd.
- Piezoelectric transducer23 Dec 2025US 12,507,018 B2Infineon Technologies AG
- Method for producing a mems converter using a stretching of an actuator material27 Aug 2026US 2026/0255880 A1Hahn-Schickard-Gesellschaft FüR Angewandte Forschung E. V.
- Loudspeaker arrangement for a vehicle20 Aug 2026US 2026/0247067 A1Pss Belgium NV
- Electrodynamic mems loudspeaker13 Aug 2026US 2026/0238924 A1Zhejiang Normal University
- Speaker16 Jul 2026US 2026/0205738 A1Merry Electronics (Suzhou) Co., Ltd.
- Piezoelectric microelectromechanical system microphone16 Jul 2026US 2026/0205739 A1Skyworks Solutions, Inc.
Most cited
By later US patents
- Transducer diaphragm with thermal strain relief46US 6,097,830 ASonigistix Corporation · 2000
- Electroacoustic transducer with diaphragm securing structure and method36US 6,535,612 B1American Technology Corporation · 2003
- Condenser microphone unit and condenser microphone32US 9,877,113 B2Kabushiki Kaisha Audio-Technica · 2018
- Electroacoustic transducer comprising a membrane with a middle area comprising stiffening grooves29US 7,306,073 B2NXP B. V. · 2007
- Radially arcuated speaker cone27US 4,881,617 A1989