H04R 1/345
For loudspeakers
Official title: {for loudspeakers}
H04R1/345 (For loudspeakers) appears on 1,541 US grants and 1,677 published applications in this corpus.
Search patents in H04R- Granted patents
- 1,541
- Published applications
- 1,677
- Assignees
- 525
- Inventors
- 2,689
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 9 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 0 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 10 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 11 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 12 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 4 | 0 |
| 1998 | 9 | 0 |
| 1999 | 17 | 0 |
| 2000 | 15 | 0 |
| 2001 | 5 | 1 |
| 2002 | 13 | 13 |
| 2003 | 15 | 13 |
| 2004 | 11 | 22 |
| 2005 | 5 | 21 |
| 2006 | 11 | 25 |
| 2007 | 9 | 24 |
| 2008 | 15 | 28 |
| 2009 | 15 | 21 |
| 2010 | 15 | 21 |
| 2011 | 21 | 32 |
| 2012 | 35 | 33 |
| 2013 | 33 | 41 |
| 2014 | 36 | 41 |
| 2015 | 45 | 52 |
| 2016 | 41 | 54 |
| 2017 | 73 | 97 |
| 2018 | 80 | 63 |
| 2019 | 93 | 105 |
| 2020 | 112 | 98 |
| 2021 | 95 | 165 |
| 2022 | 116 | 126 |
| 2023 | 125 | 151 |
| 2024 | 146 | 171 |
| 2025 | 124 | 121 |
| 2026 | 70 | 138 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electronic device including sound device6 Oct 2026US 12,756,973 B2Samsung Electronics Co., Ltd.
- Acoustic output devices8 Sep 2026US 12,732,744 B2Shenzhen Shokz Co., Ltd.
- Systems and methods for suppressing sound leakage8 Sep 2026US 12,732,760 B2Shenzhen Shokz Co., Ltd.
- Equine audio system with optimized signal processing1 Sep 2026US 12,726,753 B2
- Speaker device25 Aug 2026US 12,720,252 B2Shenzhen Shokz Co., Ltd.
- Loudspeaker with phase plug8 Oct 2026US 2026/0313292 A1Ask Industries Societa' Per Azioni
- Acoustic output devices1 Oct 2026US 2026/0304029 A1Shenzhen Shokz Co., Ltd.
- Speaker enclosure with soundwave shaping1 Oct 2026US 2026/0304032 A1Danley Sound Labs, Inc.
- Cinema Light Emitting Screen and Sound System1 Oct 2026US 2026/0304033 A1IMAX Corporation
- Acoustic output devices24 Sep 2026US 2026/0292391 A1Shenzhen Shokz Co., Ltd.
Most cited
By later US patents
- Headset for electronic stethoscope956US 5,561,275 ADelstar Services Informatiques (1993) Inc. · 1996
- Submersible personal stereo239US 4,683,587 A1987
- Voice controlled assistant with coaxial speaker and microphone arrangement178US 9,060,224 B1Rawles LLC · 2015
- Acoustic optimization170US 8,965,033 B2Sonos, Inc. · 2015
- Sound pickup apparatus and echo cancellation processing method160US 8,238,547 B2Sony Corporation · 2012