H04R 25/502
Using analog signal processing
Official title: {using analog signal processing}
H04R25/502 (Using analog signal processing) appears on 209 US grants and 102 published applications in this corpus.
Search patents in H04R- Granted patents
- 209
- Published applications
- 102
- Assignees
- 100
- Inventors
- 322
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 6 | 0 |
| 1989 | 6 | 0 |
| 1990 | 8 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 10 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 2 |
| 2002 | 7 | 8 |
| 2003 | 4 | 10 |
| 2004 | 9 | 8 |
| 2005 | 10 | 4 |
| 2006 | 4 | 7 |
| 2007 | 6 | 4 |
| 2008 | 5 | 7 |
| 2009 | 2 | 0 |
| 2010 | 4 | 2 |
| 2011 | 4 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 4 |
| 2014 | 3 | 1 |
| 2015 | 2 | 4 |
| 2016 | 4 | 5 |
| 2017 | 5 | 7 |
| 2018 | 5 | 4 |
| 2019 | 5 | 4 |
| 2020 | 5 | 2 |
| 2021 | 2 | 4 |
| 2022 | 2 | 6 |
| 2023 | 2 | 1 |
| 2024 | 2 | 3 |
| 2025 | 3 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for ensuring symmetric audio quality for hands-free phoning28 Oct 2025US 12,457,460 B2Sonova AG
- System and method for personalized sound modification18 Feb 2025US 12,231,857 B2Board of Trustees of Northern Illinois University
- Hearing device with minimum processing beamformer11 Feb 2025US 12,225,351 B2Oticon A/S
- Inner ear apparatus7 May 2024US 11,975,192 B2
- System of processing devices to perform an algorithm13 Feb 2024US 11,902,745 B2Jacoti BV
- Adaptive Improvement For Personalized Sound Processing by a Hearing Device1 Oct 2026US 2026/0304045 A1Sonova AG
- Method for fitting hearing aid and hearing aid14 May 2026US 2026/0136143 A1Anker Innovations Technology Co., Ltd.
- Hearing device with minimum processing beamformer30 Apr 2026US 2026/0122432 A1Oticon A/S
- System and method for personalized sound modification31 Jul 2025US 2025/0247658 A1Board of Trustees of Northern Illinois University
- Inner ear apparauts25 Jul 2024US 2024/0245914 A1
Most cited
By later US patents
- Intrabody communication for a hearing aid247US 7,206,423 B1The Board of Trustees of the University of Illinois · 2007
- Apparatus for multichannel cochlear implant hearing aid system172US 4,400,590 AThe Regents of the University of California · 1983
- Hearing apparatus163US 5,390,254 A1995
- Tinnitus masker for direct drive hearing devices162US 5,795,287 ASymphonix Devices, Inc. · 1998
- Differential hearing aid with programmable frequency response143US 4,622,440 AIn Tech Systems Corp. · 1986