H04L 65/4061
Push-to services
Official title: Push-to services, e.g. push-to-talk or push-to-video
H04L65/4061 (Push-to services) appears on 825 US grants and 1,039 published applications in this corpus.
Search patents in H04L- Granted patents
- 825
- Published applications
- 1,039
- Assignees
- 287
- Inventors
- 1,680
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 18 |
| 2003 | 2 | 8 |
| 2004 | 3 | 27 |
| 2005 | 8 | 54 |
| 2006 | 16 | 121 |
| 2007 | 21 | 84 |
| 2008 | 16 | 80 |
| 2009 | 34 | 61 |
| 2010 | 67 | 44 |
| 2011 | 66 | 38 |
| 2012 | 58 | 47 |
| 2013 | 69 | 30 |
| 2014 | 64 | 32 |
| 2015 | 47 | 43 |
| 2016 | 37 | 35 |
| 2017 | 32 | 51 |
| 2018 | 37 | 43 |
| 2019 | 60 | 41 |
| 2020 | 43 | 36 |
| 2021 | 31 | 24 |
| 2022 | 31 | 36 |
| 2023 | 24 | 28 |
| 2024 | 15 | 23 |
| 2025 | 27 | 22 |
| 2026 | 10 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus and methods for centralized message exchange in a user premises device29 Sep 2026US 12,750,408 B2Charter Communications Operating, LLC
- System and method for reducing the prevalence of delirium in patients in an isolating healthcare environment18 Aug 2026US 12,708,735 B2VoiceLove LLC
- Push-to-Talk communications using a web application18 Aug 2026US 12,712,933 B2Science Arts, Inc.
- Method and system for sharing location information in remote ambient call5 May 2026US 12,621,633 B2Samsung Electronics Co., Ltd.
- Method and apparatus for managing synchronization source collisions in mission critical services14 Apr 2026US 12,603,860 B2Samsung Electronics Co., Ltd.
- Method and system for sharing location information in remote ambient call13 Aug 2026US 2026/0238965 A1Samsung Electronics Co., Ltd.
- Determining probability of successful push-to-talk call connection23 Jul 2026US 2026/0214749 A1Motorola Solutions, Inc.
- Method and apparatus for managing synchronization source collisions in mission critical services9 Jul 2026US 2026/0197296 A1Samsung Electronics Co., Ltd.
- Method and apparatus for communication in communication system supporting multi-talker mission critical push-to-talk (mcptt)11 Jun 2026US 2026/0164504 A1Samsung Electronics Co., Ltd.
- Context Retrieval And Output By A Client Device In A Peer-To-Peer Push-To-Talk System23 Apr 2026US 2026/0113366 A1Zoom Communications, Inc.
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
- System and method for providing group communication services in an existing communication system417US 6,477,150 B1QUALCOMM Incorporated · 2002
- Method and system for displaying group chat sessions on wireless mobile terminals361US 7,111,044 B2fastmobile, Inc. · 2006
- Voice initiated network operations361US 7,996,228 B2Microsoft Corporation · 2011
- System and method for chat based communication multiphase encoded protocol and syncrhonization of network buses244US 7,072,941 B2fastmobile, Inc. · 2006