H04R 2225/31
Aspects of the use of accumulators in hearing aids
Official title: Aspects of the use of accumulators in hearing aids, e.g. rechargeable batteries or fuel cells
H04R2225/31 (Aspects of the use of accumulators in hearing aids) appears on 482 US grants and 620 published applications in this corpus.
Search patents in H04R- Granted patents
- 482
- Published applications
- 620
- Assignees
- 148
- Inventors
- 836
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 5 |
| 2002 | 4 | 4 |
| 2003 | 6 | 3 |
| 2004 | 3 | 9 |
| 2005 | 2 | 6 |
| 2006 | 4 | 3 |
| 2007 | 3 | 9 |
| 2008 | 6 | 16 |
| 2009 | 2 | 21 |
| 2010 | 10 | 13 |
| 2011 | 7 | 9 |
| 2012 | 17 | 14 |
| 2013 | 10 | 16 |
| 2014 | 18 | 23 |
| 2015 | 20 | 23 |
| 2016 | 14 | 24 |
| 2017 | 25 | 35 |
| 2018 | 19 | 32 |
| 2019 | 34 | 45 |
| 2020 | 45 | 44 |
| 2021 | 36 | 50 |
| 2022 | 43 | 65 |
| 2023 | 30 | 39 |
| 2024 | 45 | 38 |
| 2025 | 34 | 43 |
| 2026 | 22 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System for charging an ear-worn electronic device22 Sep 2026US 12,745,031 B2Starkey Laboratories, Inc.
- Hearing device having a power source22 Sep 2026US 12,745,051 B2Oticon A/S
- System for charging an ear-worn electronic device15 Sep 2026US 12,739,553 B2Starkey Laboratories, Inc.
- Inductive charging case8 Sep 2026US 12,732,021 B2Cochlear Limited
- Battery arrangement and method of assembling the same1 Sep 2026US 12,725,867 B2Sonova AG
- Hearing device and battery unit for a hearing device8 Oct 2026US 2026/0313305 A1GN Hearing A/S
- Magnetic induction antenna module1 Oct 2026US 2026/0295282 A1Cochlear Limited
- Hearing assistance devices with control of other devices24 Sep 2026US 2026/0292416 A1Starkey Laboratories, Inc.
- Charger for Charging at least one Hearing Device17 Sep 2026US 2026/0281601 A1Sonova AG
- Method for charging a rechargeable energy storage device, charger, and charging system13 Aug 2026US 2026/0238031 A1Sivantos Pte.Ltd
Most cited
By later US patents
- Charging system for implantable hearing aids and tinnitus maskers369US 5,279,292 AImplex Corporation · 1994
- Hearing aid device245US 5,343,532 A1994
- Hearing aid234US 7,010,137 B1Sarnoff Corporation · 2006
- Rechargeable battery172US 6,265,100 B1Research International, Inc. · 2001
- Semi-permanent canal hearing device143US 6,940,988 B1InSound Medical, Inc. · 2005