H04R 1/40
By combining a number of identical transducers
Official title: by combining a number of identical transducers {(specially adapted for hearing aids H04R25/405)}
H04R1/40 (By combining a number of identical transducers) appears on 4,636 US grants and 5,320 published applications in this corpus.
Search patents in H04R- Granted patents
- 4,636
- Published applications
- 5,320
- Assignees
- 1,383
- Inventors
- 8,234
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 2 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 8 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 10 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 11 | 0 |
| 1996 | 14 | 0 |
| 1997 | 8 | 0 |
| 1998 | 20 | 0 |
| 1999 | 12 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 7 |
| 2002 | 8 | 24 |
| 2003 | 14 | 21 |
| 2004 | 17 | 37 |
| 2005 | 11 | 41 |
| 2006 | 25 | 53 |
| 2007 | 21 | 72 |
| 2008 | 24 | 57 |
| 2009 | 26 | 90 |
| 2010 | 38 | 79 |
| 2011 | 57 | 81 |
| 2012 | 102 | 104 |
| 2013 | 72 | 111 |
| 2014 | 95 | 113 |
| 2015 | 108 | 140 |
| 2016 | 165 | 181 |
| 2017 | 187 | 229 |
| 2018 | 242 | 377 |
| 2019 | 399 | 467 |
| 2020 | 461 | 500 |
| 2021 | 455 | 530 |
| 2022 | 478 | 503 |
| 2023 | 456 | 486 |
| 2024 | 404 | 392 |
| 2025 | 378 | 336 |
| 2026 | 222 | 289 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Personalized, real-time audio processing6 Oct 2026US 12,755,748 B2eBay Inc.
- Sound bar system, sound bar, controller, program, and method for setting sound bar6 Oct 2026US 12,756,979 B2D&M Holdings, Inc.
- Coordination of audio devices29 Sep 2026US 12,750,621 B2Dolby International AB
- Apparatus including a rear cover having a hole29 Sep 2026US 12,750,622 B2LG Display Co., Ltd.
- Set-top box of reduced height22 Sep 2026US 12,745,028 B2Sagemcom Broadband SAS
- Earphone8 Oct 2026US 2026/0313280 A1Shenzhen Dancing Future Technology Ltd.
- Acoustic imaging systems for visual diagnosis8 Oct 2026US 2026/0313307 A1Fluke Corporation
- Diagnosis system for vehicle components1 Oct 2026US 2026/0298773 A1Magic Engineering Srl
- Projector1 Oct 2026US 2026/0299384 A1Seiko Epson Corporation
- Robust voice activity detector system for use with an earphone1 Oct 2026US 2026/0299875 A1ST DetectTech, LLC
Most cited
By later US patents
- Localized projection of audible noises in medical settings525US 10,388,120 B2Masimo Corporation · 2019
- Sound localization system for teleconferencing using self-steering microphone arrays423US 5,335,011 ABell Communications Research, Inc. · 1994
- Orientation-responsive use of acoustic reflection403US 8,934,655 B2Bose Corporation · 2015
- Electronic apparatus having microphones with controllable front-side gain and rear-side gain331US 8,300,845 B2Motorola Mobility LLC · 2012
- Electroacoustical transducing313US 7,519,188 B2Bose Corporation · 2009