H04R 2225/33
Aspects relating to adaptation of the battery voltage
Official title: Aspects relating to adaptation of the battery voltage, e.g. its regulation, increase or decrease
H04R2225/33 (Aspects relating to adaptation of the battery voltage) appears on 211 US grants and 227 published applications in this corpus.
Search patents in H04R- Granted patents
- 211
- Published applications
- 227
- Assignees
- 59
- Inventors
- 323
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 3 |
| 2002 | 5 | 2 |
| 2003 | 1 | 0 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 1 | 5 |
| 2007 | 1 | 9 |
| 2008 | 2 | 6 |
| 2009 | 3 | 5 |
| 2010 | 6 | 3 |
| 2011 | 1 | 4 |
| 2012 | 7 | 6 |
| 2013 | 7 | 10 |
| 2014 | 11 | 7 |
| 2015 | 9 | 13 |
| 2016 | 9 | 14 |
| 2017 | 11 | 28 |
| 2018 | 20 | 16 |
| 2019 | 22 | 21 |
| 2020 | 25 | 16 |
| 2021 | 12 | 20 |
| 2022 | 16 | 14 |
| 2023 | 14 | 6 |
| 2024 | 7 | 7 |
| 2025 | 6 | 6 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hearing device having a power source22 Sep 2026US 12,745,051 B2Oticon A/S
- Electronic device worn on the body, hearing aid instrument, and voltage supply for such a device18 Aug 2026US 12,712,431 B2Sivantos Pte.Ltd
- Hearing device with a bleeding circuit for delivering messages to a charging device14 Apr 2026US 12,604,130 B2Sonova AG
- Power management in low power wireless link in a hearing aid system14 Oct 2025US 12,445,788 B2Oticon A/S
- Charging-induced implant operation7 Oct 2025US 12,439,211 B2Cochlear Limited
- Charger for galvanic charging of a hearing device6 Aug 2026US 2026/0230739 A1Sivantos Pte.Ltd
- Device-finding using light sources on hearing instruments2 Jul 2026US 2026/0189860 A1Starkey Laboratories, Inc.
- Charging-induced implant operation19 Mar 2026US 2026/0082159 A1Cochlear Limited
- Intermodulation distortion reduction in a contact hearing system4 Dec 2025US 2025/0373991 A1Earlens Corporation
- Hearing device with a bleeding circuit for delivering messages to a charging device3 Jul 2025US 2025/0220331 A1Sonova AG
Most cited
By later US patents
- Self-powered medical device1,012US 6,516,073 B1Siemens Audiologische Technik GmbH · 2003
- Hearing aid wireless network325US 7,778,432 B2GN ReSound A/S · 2010
- Headset connector110US 8,401,219 B2Apple Inc. · 2013
- Wireless headset having adaptive powering94US 8,185,084 B2Apple Inc. · 2012
- Progressive start-up circuit for activating a charge pump87US 6,304,467 B1The Procter & Gamble Company · 2001