H04R 2420/00
Details of connection covered by h04r, not provided for in its groups
Official title: Details of connection covered by H04R, not provided for in its groups
H04R2420/00 (Details of connection covered by h04r, not provided for in its groups) appears on 7,125 US grants and 9,087 published applications in this corpus.
Search patents in H04R- Granted patents
- 7,125
- Published applications
- 9,087
- Assignees
- 2,083
- Inventors
- 12,766
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 9 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 13 | 0 |
| 1999 | 10 | 0 |
| 2000 | 17 | 0 |
| 2001 | 10 | 11 |
| 2002 | 12 | 43 |
| 2003 | 12 | 44 |
| 2004 | 30 | 71 |
| 2005 | 26 | 66 |
| 2006 | 40 | 105 |
| 2007 | 40 | 170 |
| 2008 | 28 | 175 |
| 2009 | 42 | 142 |
| 2010 | 76 | 144 |
| 2011 | 90 | 165 |
| 2012 | 173 | 171 |
| 2013 | 145 | 246 |
| 2014 | 163 | 302 |
| 2015 | 251 | 373 |
| 2016 | 351 | 473 |
| 2017 | 467 | 665 |
| 2018 | 588 | 692 |
| 2019 | 674 | 652 |
| 2020 | 661 | 710 |
| 2021 | 561 | 712 |
| 2022 | 576 | 693 |
| 2023 | 586 | 691 |
| 2024 | 580 | 598 |
| 2025 | 514 | 544 |
| 2026 | 329 | 429 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04R 2420/07Applications of wireless loudspeakers or wireless microphonesIndexing code5,592
- H04R 2420/09Applications of special connectorsIndexing code783
- H04R 2420/01Input selection or mixing for amplifiers or loudspeakersIndexing code763
- H04R 2420/05Detection of connection of loudspeakers or headphones to amplifiersIndexing code619
- H04R 2420/03Connection circuits to selectively connect loudspeakers or headphones to amplifiersIndexing code534
Recent patents
- Wearable speaker6 Oct 2026US 12,756,962 B2LG Electronics Inc.
- Headphone with touchscreen6 Oct 2026US 12,756,967 B2Shenzhen Jiuhu Technology Co., Limited
- TWS including planar speaker incorporating circuit-embedded vibrator, dynamic speaker, and microphone6 Oct 2026US 12,756,969 B2
- Device and method for expanding 7-channel audio by using radio transmission6 Oct 2026US 12,756,977 B2Samsung Electronics Co., Ltd.
- Distributed generative models29 Sep 2026US 12,750,620 B2Sonos, Inc.
- Hearing Device User Communicating With a Wireless Communication Device8 Oct 2026US 2026/0311690 A1Sonova AG
- Earphone8 Oct 2026US 2026/0313283 A1Vivo Mobile Communication Co., Ltd.
- Headset supporting radio frequency broadcast signals and bluetooth and related systems and methods8 Oct 2026US 2026/0313284 A1Party Headphones, LLC
- Failure Recovery of Wearable Playback Device8 Oct 2026US 2026/0313313 A1Sonos, Inc.
- Audio output device with a light emitting unit1 Oct 2026US 2026/0298460 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Method and device for obtaining playlist content over a network1,821US 8,045,952 B2Horsham Enterprises, LLC · 2011
- Audio network distribution system1,807US 7,643,894 B2Netstreams, LLC · 2010
- Wireless and wired speaker hub for a home theater system1,803US 7,483,538 B2KSC Industries, Inc. · 2009
- Wired, wireless, infrared, and powerline audio entertainment systems1,763US 7,853,341 B2KSC Industries, Inc. · 2010
- Wired, wireless, infrared, and powerline audio entertainment systems1,762US 8,103,009 B2KSC Industries, Inc. · 2012