H04H 20/59
For emergency or urgency
Official title: for emergency or urgency
H04H20/59 (For emergency or urgency) appears on 418 US grants and 519 published applications in this corpus.
Search patents in H04H- Granted patents
- 418
- Published applications
- 519
- Assignees
- 178
- Inventors
- 711
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 4 |
| 2004 | 2 | 5 |
| 2005 | 1 | 6 |
| 2006 | 3 | 15 |
| 2007 | 2 | 19 |
| 2008 | 4 | 27 |
| 2009 | 7 | 26 |
| 2010 | 12 | 32 |
| 2011 | 12 | 27 |
| 2012 | 15 | 11 |
| 2013 | 23 | 29 |
| 2014 | 19 | 26 |
| 2015 | 28 | 40 |
| 2016 | 29 | 36 |
| 2017 | 43 | 33 |
| 2018 | 34 | 38 |
| 2019 | 23 | 32 |
| 2020 | 41 | 29 |
| 2021 | 29 | 22 |
| 2022 | 17 | 15 |
| 2023 | 14 | 13 |
| 2024 | 13 | 15 |
| 2025 | 12 | 13 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fragmenting public warning system messages in a wireless system22 Sep 2026US 12,744,608 B2Outdoor Wireless Networks LLC
- Enhanced situational awareness for emergency response1 Sep 2026US 12,725,510 B2RapidDeploy, Inc.
- Method of signaling an audio stream properties descriptor, device for signaling an audio stream properties descriptor, and device for receiving an audio stream properties descriptor25 Aug 2026US 12,718,794 B2Sharp Kabushiki Kaisha
- Systems and methods for providing a contextual menu with information related to an emergency alert21 Jul 2026US 12,689,808 B2Adeia Guides Inc.
- Systems and methods for communication control in a restricted environment9 Jun 2026US 12,652,288 B2Tecore, Inc.
- Systems and methods for providing a contextual menu with information related to an emergency alert8 Oct 2026US 2026/0313205 A1Adeia Guides Inc.
- Emergency Alert Secondary Audio Substitution In Digital Radio Broadcasting2 Apr 2026US 2026/0095269 A1iBiquity Digital Corporation
- Delivering Notification Information5 Mar 2026US 2026/0067379 A1Comcast Cable Communications, LLC
- Providing autonomous vehicle assistance22 Jan 2026US 2026/0024440 A1Lodestar Licensing Group LLC
- Adapting radio access network coverage for location-based alerts15 Jan 2026US 2026/0019790 A1AT&T Intellectual Property I, L. P.
Most cited
By later US patents
- Telephone-based interactive broadcast or cable radio or television methods and apparatus271US 5,907,793 A1999
- Broadcast system with associated data capabilities232US 5,577,266 ADigital D.J. Inc. · 1996
- Alerting device and system for abnormal situations197US 5,572,201 AFederal Signal Corporation · 1996
- Radio communication system with automatic geographic event notification131US 6,112,074 AMotorola, Inc. · 2000
- Digital signal transmitting and/or receiving system124US 4,656,629 ASony Corporation · 1987