H04R 9/048
Of the ribbon type
Official title: {of the ribbon type}
H04R9/048 (Of the ribbon type) appears on 82 US grants and 67 published applications in this corpus.
Search patents in H04R- Granted patents
- 82
- Published applications
- 67
- Assignees
- 46
- Inventors
- 120
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 4 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 3 |
| 2007 | 0 | 4 |
| 2008 | 1 | 2 |
| 2009 | 0 | 5 |
| 2010 | 0 | 1 |
| 2011 | 4 | 7 |
| 2012 | 6 | 7 |
| 2013 | 4 | 1 |
| 2014 | 3 | 1 |
| 2015 | 5 | 2 |
| 2016 | 2 | 4 |
| 2017 | 6 | 3 |
| 2018 | 5 | 3 |
| 2019 | 4 | 1 |
| 2020 | 3 | 3 |
| 2021 | 3 | 3 |
| 2022 | 3 | 3 |
| 2023 | 1 | 0 |
| 2024 | 3 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ribbon speaker2 Jun 2026US 12,647,741 B2Sable Corporation
- Phantom powered FET circuit for audio application8 Jul 2025US 12,356,137 B1Cloud Microphones, LLC.
- Vibrating diaphragm array27 May 2025US 12,317,043 B2Shenzhen Linearup Technologies Ltd.
- Internet-of-things methods and systems22 Oct 2024US 12,126,377 B2Heathkit Company, Inc.
- Internet-of-things methods and systems17 Sep 2024US 12,095,505 B2Heathkit Company, Inc.
- Sound production unit and audio device23 Jul 2026US 2026/0214390 A1Caldron Technologies Pte. Ltd.
- Planar-dynamic acoustic transducer9 Jul 2026US 2026/0197591 A1
- Diaphragm and audio device18 Jun 2026US 2026/0172755 A1Caldron Technologies Pte. Ltd.
- Electroacoustic transducer19 Feb 2026US 2026/0052345 A1Arya Audio Labs Ltd
- Ribbon speaker24 Apr 2025US 2025/0133360 A1Sable Corporation
Most cited
By later US patents
- Ribbon speaker system36US 4,550,228 AApogee Acoustics, Inc. · 1985
- Ribbon loudspeaker29US 5,021,613 AGold Ribbon Concepts, Inc. · 1991
- Acoustical ribbon transducer loudspeaker system19US 5,195,143 AApogee Acoustics, Inc. · 1993
- Line radiator ribbon loudspeaker17US 4,319,096 A1982
- Loudspeakers17US 5,081,683 A1992