H03G 5/165
Equalizers
Official title: {Equalizers; Volume or gain control in limited frequency bands}
H03G5/165 (Equalizers) appears on 964 US grants and 967 published applications in this corpus.
Search patents in H03G- Granted patents
- 964
- Published applications
- 967
- Assignees
- 373
- Inventors
- 1,544
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 7 | 0 |
| 1987 | 8 | 0 |
| 1988 | 7 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 4 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 4 |
| 2003 | 1 | 5 |
| 2004 | 5 | 12 |
| 2005 | 4 | 12 |
| 2006 | 4 | 8 |
| 2007 | 2 | 9 |
| 2008 | 6 | 14 |
| 2009 | 3 | 11 |
| 2010 | 11 | 13 |
| 2011 | 8 | 19 |
| 2012 | 16 | 23 |
| 2013 | 12 | 34 |
| 2014 | 18 | 45 |
| 2015 | 40 | 52 |
| 2016 | 57 | 69 |
| 2017 | 84 | 74 |
| 2018 | 85 | 93 |
| 2019 | 111 | 94 |
| 2020 | 88 | 71 |
| 2021 | 61 | 68 |
| 2022 | 62 | 61 |
| 2023 | 58 | 64 |
| 2024 | 49 | 52 |
| 2025 | 44 | 36 |
| 2026 | 28 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and apparatus for audio equalization based on variant selection6 Oct 2026US 12,755,153 B2Gracenote, Inc.
- Automatic volume leveling6 Oct 2026US 12,756,370 B2Bose Corporation
- Playback device pairing22 Sep 2026US 12,745,041 B2Sonos, Inc.
- Post-processor, pre-processor, audio encoder, audio decoder and related methods for enhancing transient processing15 Sep 2026US 12,738,286 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Automatically allocating audio portions to playback devices8 Sep 2026US 12,732,753 B2Sonos, Inc.
- Signal transmission circuit for high frequency transmission10 Sep 2026US 2026/0269799 A1ASMedia Technology Inc.
- Context aware audio capture and rendering20 Aug 2026US 2026/0247093 A1Dolby Laboratories Licensing Corporation
- Techniques for automatic equalization of audio23 Jul 2026US 2026/0213720 A1Harman Becker Automotive Systems GmbH
- Hearing-assist systems and methods for audio quality enhancements in performance venues23 Jul 2026US 2026/0214385 A1The Epstein Hear Us Now Foundation
- Signal processing system and electric device16 Jul 2026US 2026/0205085 A1AAC Technologies PTE.Ltd.
Most cited
By later US patents
- Shaping sound responsive to speaker orientation476US 9,042,556 B2Sonos, Inc. · 2015
- Speaker equalization for mobile devices370US 9,300,266 B2QUALCOMM Incorporated · 2016
- In-room acoustic magnitude response smoothing via summation of correction signals327US 8,194,874 B2Polk Audio, LLC · 2012
- Dynamic distortion elimination for output audio324US 8,045,721 B2Motorola Mobility LLC · 2011
- Electroacoustical transducing with low frequency augmenting devices304US 8,238,578 B2Bose Corporation · 2012