H04R 1/288
For loudspeaker transducers
Official title: {for loudspeaker transducers}
H04R1/288 (For loudspeaker transducers) appears on 647 US grants and 733 published applications in this corpus.
Search patents in H04R- Granted patents
- 647
- Published applications
- 733
- Assignees
- 260
- Inventors
- 1,302
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 5 |
| 2003 | 3 | 2 |
| 2004 | 6 | 2 |
| 2005 | 1 | 3 |
| 2006 | 4 | 9 |
| 2007 | 0 | 6 |
| 2008 | 4 | 5 |
| 2009 | 2 | 7 |
| 2010 | 2 | 9 |
| 2011 | 6 | 7 |
| 2012 | 10 | 9 |
| 2013 | 8 | 11 |
| 2014 | 8 | 15 |
| 2015 | 12 | 19 |
| 2016 | 16 | 36 |
| 2017 | 34 | 48 |
| 2018 | 44 | 42 |
| 2019 | 61 | 53 |
| 2020 | 51 | 70 |
| 2021 | 51 | 59 |
| 2022 | 51 | 54 |
| 2023 | 53 | 89 |
| 2024 | 48 | 68 |
| 2025 | 65 | 46 |
| 2026 | 44 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sound-absorbing material block, method for preparing thereof, and electronic device29 Sep 2026US 12,747,189 B2AAG Technologies (Nanjing) Co., Ltd.
- Hierarchical porous ZSM-5 molecular sieve, preparation method therefor, HZSM-5 molecular sieve prepared therefrom, and use of molecular sieve22 Sep 2026US 12,741,877 B2SSI New Material (Zhenjiang) Co., Ltd.
- Electronic device and damper22 Sep 2026US 12,745,034 B2Micro-Star Int’l Co.,Ltd.
- Earphones and transducer devices thereof15 Sep 2026US 12,739,566 B2Shenzhen Shokz Co., Ltd.
- Systems and methods for suppressing sound leakage8 Sep 2026US 12,732,760 B2Shenzhen Shokz Co., Ltd.
- Techniques for Using Floodlight LEDs When Imaging Sensors Have an Insufficient Level of Detail for Identifying Hand Gestures, and Mixed-Reality Systems and Methods of Using These Techniques24 Sep 2026US 2026/0292120 A1Meta Platforms Technologies, LLC
- Wearable audio device including an improved ear cup24 Sep 2026US 2026/0292395 A1Bose Corporation
- Vehicle loudspeaker and sound system17 Sep 2026US 2026/0281610 A1Suzhou Sonavox Electronics Co., Ltd.
- Fabricated quijada20 Aug 2026US 2026/0240624 A1
- Speaker assemblies and earphones13 Aug 2026US 2026/0238919 A1Shenzhen Shokz Co., Ltd.
Most cited
By later US patents
- Loudspeaker array with signal dependent radiation pattern155US 5,870,484 A1999
- Communications terminal having a single transducer for handset and handsfree receive functionality99US 5,790,679 ANorthern Telecom Limited · 1998
- Tabletop speaker assembly77US 4,620,317 AShure Brothers, Inc. · 1986
- Tower-type speaker cabinet with pivoted plural speaker subassembly65US 4,884,655 ASparkomatic Corporation · 1989
- Vibration damping device64US 5,629,503 ATekna Sonic, Inc. · 1997