H04M 2215/2093
Push to talk
H04M2215/2093 (Push to talk) appears on 19 US grants and 27 published applications in this corpus.
Search patents in H04M- Granted patents
- 19
- Published applications
- 27
- Assignees
- 18
- Inventors
- 66
- Latest grant
- 6 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2004 | 1 | 2 |
| 2005 | 0 | 3 |
| 2006 | 2 | 4 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 2 | 5 |
| 2010 | 2 | 0 |
| 2011 | 2 | 3 |
| 2012 | 2 | 1 |
| 2013 | 1 | 0 |
| 2014 | 2 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 1 |
By publication year.
Recent patents
- Status indicators for mobile voice devices6 Dec 2022US 11,522,982 B2
- Walkie-talkie device, electronic apparatus, walkie-talkie information transmission method, and information transmission method18 May 2021US 11,012,551 B2Shenzhen Wistek Energy Co., Ltd.
- Video controlled virtual talk groups26 May 2015US 9,041,797 B2Cisco Technology, Inc.
- Push-to-talk interworking11 Nov 2014US 8,886,242 B2T-Mobile Deutschland GmbH
- Method and device for operating a group service in a communications network26 Aug 2014US 8,819,204 B2Nokia Siemens Networks Oy
- Status indicators for mobile voice devices25 Aug 2022US 2022/0272183 A1
- Communication apparatus and wireless communication system21 Oct 2021US 2021/0329735 A1Circleone Co., Ltd.
- Walkie-talkie device, electronic apparatus, walkie-talkie information transmission method, and information transmission method30 Jul 2020US 2020/0244790 A1Shenzhen Wistek Energy Co., Ltd.
- Communicating the number of participants in a push-to-talk over cellular communication sessions5 Nov 2015US 2015/0319788 A1Vodafone Group PLC
- Charging method and system for push-to-talk over cellular system29 Mar 2012US 2012/0077460 A1Huawei Technologies Co., Ltd.
Most cited
By later US patents
- Multifunctional world wide walkie talkie, a tri-frequency cellular-satellite wireless instant messenger computer and network for establishing global wireless volp quality of service (qos) communications, unified messaging, and video conferencing via the internet1,246US 6,763,226 B1Computer Science Central, Inc. · 2004
- Method for transferring messages between communication terminals56US 7,239,623 B2Siemens Aktiengesellschaft · 2007
- System and method for providing support services in push to talk communication platforms27US 7,107,017 B2Nokia Corporation · 2006
- Multiplexing media components of different sessions20US 7,522,613 B2Nokia Corporation · 2009
- Method and apparatus for billing for usage-based group communication between wireless devices15US 7,155,203 B2QUALCOMM Incorporated · 2006