H04W 36/00226
Wherein the core network technologies comprise ip multimedia system [ims]
Official title: {wherein the core network technologies comprise IP multimedia system [IMS], e.g. single radio voice call continuity [SRVCC]}
H04W36/00226 (Wherein the core network technologies comprise ip multimedia system [ims]) appears on 595 US grants and 725 published applications in this corpus.
Search patents in H04W- Granted patents
- 595
- Published applications
- 725
- Assignees
- 159
- Inventors
- 1,119
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 1 | 1 |
| 2006 | 0 | 7 |
| 2007 | 0 | 15 |
| 2008 | 1 | 14 |
| 2009 | 3 | 11 |
| 2010 | 7 | 34 |
| 2011 | 6 | 32 |
| 2012 | 17 | 35 |
| 2013 | 29 | 52 |
| 2014 | 44 | 44 |
| 2015 | 40 | 57 |
| 2016 | 56 | 42 |
| 2017 | 51 | 37 |
| 2018 | 44 | 42 |
| 2019 | 47 | 54 |
| 2020 | 42 | 45 |
| 2021 | 45 | 45 |
| 2022 | 40 | 37 |
| 2023 | 38 | 54 |
| 2024 | 35 | 34 |
| 2025 | 22 | 17 |
| 2026 | 27 | 12 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Shared use of cellular networks to provide wireless services15 Sep 2026US 12,739,612 B2Charter Communications Operating, LLC
- Call switching method and apparatus, storage medium and mobile terminal15 Sep 2026US 12,739,720 B2Huizhou Tcl Mobile Communication Co., Ltd.
- Handling of user equipment (UE) context information after inter-system handover15 Sep 2026US 12,739,724 B2Telefonaktiebolaget LM Ericsson (publ)
- Method and system to improve IMS registration failure due to P-CSCF server connection failure25 Aug 2026US 12,719,938 B2Innopeak Technology, Inc.
- Method and apparatus for improving voice service quality in wireless communication system25 Aug 2026US 12,720,372 B2Samsung Electronics Co., Ltd.
- Secure ip multimedia subsystem (ims) calls30 Jul 2026US 2026/0222453 A1Motorola Mobility LLC
- Method and apparatus for call connection23 Jul 2026US 2026/0214514 A1Honor Device Co., Ltd.
- Methods and apparatuses for a mobility robustness optimization (mro) mechanism of an inter-rat handover procedure23 Jul 2026US 2026/0214525 A1Lenovo (Beijing) Limited
- Unified Access Control for a Cellular Network23 Jul 2026US 2026/0214549 A1Apple Inc.
- Network Switching Method, and Electronic Device and Non-Transitory Readable Storage Medium2 Jul 2026US 2026/0189987 A1Vivo Mobile Communication Co., Ltd.
Most cited
By later US patents
- Activation sequence using permission based connection to network265US 9,420,496 B1Sprint Communications Co.L.P. · 2016
- Method and system for mobile station point-to-point protocol context transfer32US 6,876,640 B1Telefonaktiebolaget LM Ericsson · 2005
- Method and system for inter-technology handoff of a hybrid access terminal29US 7,590,092 B2Motorola, Inc. · 2009
- Method of seamless roaming between wireless local area networks and cellular carrier networks22US 8,041,360 B2Kraasten Bros. Fund B.V. LLC · 2011
- Method of seamless roaming between wireless local area networks and cellular carrier networks19US 7,835,751 B22010