H04R 1/2803
For loudspeaker transducers
Official title: {for loudspeaker transducers}
H04R1/2803 (For loudspeaker transducers) appears on 561 US grants and 670 published applications in this corpus.
Search patents in H04R- Granted patents
- 561
- Published applications
- 670
- Assignees
- 248
- Inventors
- 1,059
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 1 | 4 |
| 2006 | 3 | 4 |
| 2007 | 0 | 13 |
| 2008 | 4 | 7 |
| 2009 | 3 | 9 |
| 2010 | 3 | 5 |
| 2011 | 8 | 12 |
| 2012 | 14 | 16 |
| 2013 | 14 | 20 |
| 2014 | 16 | 27 |
| 2015 | 21 | 25 |
| 2016 | 21 | 31 |
| 2017 | 31 | 31 |
| 2018 | 24 | 33 |
| 2019 | 46 | 39 |
| 2020 | 45 | 55 |
| 2021 | 41 | 66 |
| 2022 | 56 | 51 |
| 2023 | 57 | 69 |
| 2024 | 61 | 69 |
| 2025 | 44 | 36 |
| 2026 | 32 | 41 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for generating an audio signal6 Oct 2026US 12,756,970 B2Sonicedge Ltd.
- Force-cancelling, isobaric audio system with configurable bass and privacy modes15 Sep 2026US 12,739,558 B2Meta Platforms Technologies, LLC
- Acoustic signal output device18 Aug 2026US 12,713,168 B2NTT, Inc.
- Loudspeaker18 Aug 2026US 12,713,176 B2Panasonic Automotive Systems Co., Ltd.
- Systems and methods for improved acousto-haptic speakers11 Aug 2026US 12,707,190 B2Immerz, Inc.
- Multi-layer speaker assembly10 Sep 2026US 2026/0270606 A1Cardo Systems, Inc.
- Loudspeaker10 Sep 2026US 2026/0270609 A1Pss Belgium NV
- Eartips with an inset silicone foam section27 Aug 2026US 2026/0255095 A1Apple Inc.
- Horn apparatuses and associated methods20 Aug 2026US 2026/0241860 A1Pss Belgium NV
- Safe Case for Ultrasonic Voice Masking13 Aug 2026US 2026/0237371 A1Ppip, LLC
Most cited
By later US patents
- Earphone296US 5,949,896 ASony Corporation · 1999
- Handset with a single transducer for handset and handsfree functionality64US 6,002,949 ANortel Networks Limited · 1999
- Constant pressure device56US 4,657,108 A1987
- High back emf, high pressure subwoofer having small volume cabinet, low frequency cutoff and pressure resistant surround46US 5,937,074 A1999
- Lightweight headset for high noise environments42US 6,920,228 B2Otto Engineering, Inc. · 2005