H04H 20/71
Wireless systems
H04H20/71 (Wireless systems) appears on 1,046 US grants and 1,063 published applications in this corpus.
Search patents in H04H- Granted patents
- 1,046
- Published applications
- 1,063
- Assignees
- 378
- Inventors
- 1,605
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 12 | 0 |
| 1998 | 20 | 0 |
| 1999 | 26 | 0 |
| 2000 | 18 | 0 |
| 2001 | 27 | 15 |
| 2002 | 17 | 28 |
| 2003 | 12 | 29 |
| 2004 | 13 | 36 |
| 2005 | 24 | 60 |
| 2006 | 26 | 71 |
| 2007 | 27 | 62 |
| 2008 | 21 | 36 |
| 2009 | 32 | 70 |
| 2010 | 49 | 49 |
| 2011 | 54 | 46 |
| 2012 | 52 | 30 |
| 2013 | 57 | 45 |
| 2014 | 59 | 39 |
| 2015 | 62 | 129 |
| 2016 | 67 | 60 |
| 2017 | 79 | 61 |
| 2018 | 66 | 36 |
| 2019 | 43 | 39 |
| 2020 | 54 | 35 |
| 2021 | 31 | 19 |
| 2022 | 20 | 15 |
| 2023 | 16 | 23 |
| 2024 | 11 | 10 |
| 2025 | 17 | 18 |
| 2026 | 10 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fragmenting public warning system messages in a wireless system22 Sep 2026US 12,744,608 B2Outdoor Wireless Networks LLC
- Node-enabled logistics receptacle in a wireless node network25 Aug 2026US 12,718,184 B2Federal Express Corporation
- Remote control using ATSC 3.025 Aug 2026US 12,720,281 B2Sony Group Corporation
- Vehicle and method of controlling the same28 Jul 2026US 12,695,528 B2Hyundai Motor Company
- Audio broadcast management based on audio disruption16 Jun 2026US 12,659,062 B2Motorola Mobility LLC
- Remote control using atsc 3.028 May 2026US 2026/0149950 A1Sony Group Corporation
- Adapting radio access network coverage for location-based alerts15 Jan 2026US 2026/0019790 A1AT&T Intellectual Property I, L. P.
- Method and system for conveying multiple component signals as a combined signal in a common frequency band11 Dec 2025US 2025/0380282 A1Elta Systems Ltd.
- Reception-based broadcast template adjustment4 Dec 2025US 2025/0374018 A1Google Inc.
- Method and apparatus for managing radio broadcast database and identifying radio broadcasting audio source23 Oct 2025US 2025/0330256 A1Hyundai Motor Company
Most cited
By later US patents
- Association management in a wireless node network755US 8,989,053 B1Fedex Corporate Services, Inc. · 2015
- Method and system for allowing multiple nodes in a small environment to play audio signals independent of other nodes564US 6,826,283 B13Com Corporation · 2004
- Audio and video transmission and receiving system508US 6,002,720 AH. Lee Browne, D/B/A Greenwich Information Technologies LLC · 1999
- Digital wireless speaker system422US 5,946,343 AL. S. Research, Inc. · 1999
- Digital wireless speaker system416US 5,832,024 AL. S. Research, Inc. · 1998