H04L 63/304
Intercepting circuit switched data communications
Official title: {intercepting circuit switched data communications (lawful interception of wireless network communications H04W12/02)}
H04L63/304 (Intercepting circuit switched data communications) appears on 94 US grants and 114 published applications in this corpus.
Search patents in H04L- Granted patents
- 94
- Published applications
- 114
- Assignees
- 63
- Inventors
- 196
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 0 |
| 2003 | 3 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 5 |
| 2006 | 0 | 3 |
| 2007 | 0 | 5 |
| 2008 | 0 | 3 |
| 2009 | 3 | 2 |
| 2010 | 3 | 4 |
| 2011 | 1 | 4 |
| 2012 | 1 | 7 |
| 2013 | 3 | 3 |
| 2014 | 3 | 6 |
| 2015 | 3 | 14 |
| 2016 | 13 | 9 |
| 2017 | 9 | 10 |
| 2018 | 11 | 3 |
| 2019 | 5 | 8 |
| 2020 | 9 | 7 |
| 2021 | 7 | 6 |
| 2022 | 4 | 3 |
| 2023 | 5 | 4 |
| 2024 | 3 | 2 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Monitoring and detection of fraudulent or unauthorized use in telephone conferencing systems or voice networks22 Sep 2026US 12,744,823 B2Level 3 Communications, LLC
- Channel quality information feedback techniques15 Jul 2025US 12,363,777 B2Apple Inc.
- System and method for identifying services with which encrypted traffic is exchanged31 Dec 2024US 12,184,619 B2Cognyte Technologies Israel Ltd.
- Monitoring and detection of fraudulent or unauthorized use in telephone conferencing systems or voice networks24 Sep 2024US 12,101,358 B2Level 3 Communications, LLC
- Peer device protection17 Sep 2024US 12,095,803 B2Open Text Corporation
- System and method for centralized lawful interception in a network20 Aug 2026US 2026/0247157 A1Jio Platforms Limited
- Monitoring and detection of fraudulent or unauthorized use in telephone conferencing systems or voice networks.30 Jan 2025US 2025/0039246 A1Level 3 Communications, LLC
- Lawful interception method, communication devices and system9 Jan 2025US 2025/0016572 A1Telefonaktiebolaget LM Ericsson (publ)
- Peer Device Protection12 Dec 2024US 2024/0414192 A1Open Text Corporation
- Surveillance and/or security systems, event processing, and associated units, systems, methods, and computer-readable media15 Feb 2024US 2024/0054871 A1LiveView Technologies, LLC
Most cited
By later US patents
- Method for location based intercept in a communication system105US 6,138,013 AMotorola, Inc. · 2000
- Digital telecommunications call management and monitoring system89US 7,783,021 B2Value-Added Communications, Inc. · 2010
- Multiple routing and automatic network detection of a monitored call from an intercepted targeted IP phone to multiple monitoring locations62US 6,553,025 B1AT&T Corp. · 2003
- Digital telecommunications call management and monitoring system43US 9,143,609 B2Global Tel'Link Corporation · 2015
- Silent monitoring in a voice-over-data-network environment37US 6,301,246 B1Siemens Information and Communication Networks, Inc. · 2001