H04M 15/8038
Roaming or handoff
Official title: {Roaming or handoff}
H04M15/8038 (Roaming or handoff) appears on 609 US grants and 704 published applications in this corpus.
Search patents in H04M- Granted patents
- 609
- Published applications
- 704
- Assignees
- 256
- Inventors
- 1,323
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 9 |
| 2002 | 12 | 11 |
| 2003 | 10 | 21 |
| 2004 | 13 | 21 |
| 2005 | 11 | 24 |
| 2006 | 15 | 14 |
| 2007 | 21 | 19 |
| 2008 | 7 | 18 |
| 2009 | 10 | 19 |
| 2010 | 7 | 23 |
| 2011 | 15 | 24 |
| 2012 | 18 | 33 |
| 2013 | 28 | 33 |
| 2014 | 47 | 36 |
| 2015 | 30 | 44 |
| 2016 | 37 | 49 |
| 2017 | 37 | 27 |
| 2018 | 37 | 32 |
| 2019 | 31 | 33 |
| 2020 | 28 | 27 |
| 2021 | 38 | 41 |
| 2022 | 35 | 43 |
| 2023 | 32 | 44 |
| 2024 | 33 | 23 |
| 2025 | 26 | 19 |
| 2026 | 13 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Data volume exchange server, international communication system, data volume exchange method, and data volume exchange program15 Sep 2026US 12,739,603 B2NTT, Inc.
- Method and apparatus to provide user plane path management information of edge traffic for home-routed user equipment in mobile network system25 Aug 2026US 12,720,293 B2Samsung Electronics Co., Ltd.
- Method and apparatus for monitoring data usage in wireless communication system19 May 2026US 12,634,728 B2Samsung Electronics Co., Ltd.
- Policy based selection of network19 May 2026US 12,634,786 B2Telefonaktiebolaget LM Ericsson (publ)
- Network service plan design14 Apr 2026US 12,603,920 B2Headwater Research LLC
- Methods, apparatus, and systems for user-centric and decentralized roaming27 Aug 2026US 2026/0255146 A1InterDigital Patent Holdings, Inc.
- Methods and systems for policy and charging control rule generation13 Aug 2026US 2026/0238506 A1
- Method for roaming session management based on charging limit for edge computing services13 Aug 2026US 2026/0238726 A1Samsung Electronics Co., Ltd.
- Method and Apparatus for Charging6 Aug 2026US 2026/0230778 A1
- SMF Pause of Charging23 Jul 2026US 2026/0213968 A1
Most cited
By later US patents
- Enhanced communication platform and related communication method using the platform359US 6,381,316 B2Unpaid Systems, Ltd. · 2002
- Prepay telecommunications system322US 6,058,300 ANational Telemanagement Corporation · 2000
- Accounting system in a network277US 6,377,982 B1Lucent Technologies Inc. · 2002
- Roaming support for wireless access subscriber over fixed IP access networks252US 8,472,371 B1AT&T Mobility II LLC · 2013
- System, method, and computer program product for charging a roaming network for a chargeable event249US 7,801,523 B1Amdocs Software Systems Limited · 2010