H04Q 2213/13284
Call tracing
H04Q2213/13284 (Call tracing) appears on 10 US grants and 1 published applications in this corpus.
Search patents in H04Q- Granted patents
- 10
- Published applications
- 1
- Assignees
- 8
- Inventors
- 15
- Latest grant
- 10 Apr 2012
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Method and apparatus for tracking allocated phone numbers10 Apr 2012US 8,155,295 B1AT&T Intellectual Property II, L. P.
- Tracing of a malicious call9 Jan 2007US 7,162,225 B2Nokia Corporation
- Method for handling telecommunications connections via a public exchange4 Jan 2005US 6,839,409 B1Siemens Aktiengesellschaft
- Apparatus and method for identifying a third party engaged in communication with a called party13 Apr 2004US 6,721,407 B1Telefonaktiebolaget LM Ericsson (publ)
- Method of and display system for monitoring a signalling network10 Dec 2002US 6,492,996 B1Agilent Technologies, Inc.
Most cited
By later US patents
- Telecommunications network with relocateability of subscriber number114US 6,134,316 ATelefonaktiebolaget LM Ericsson · 2000
- Telecommunications network with portability of mobile subscriber number96US 6,064,887 ATelefonaktiebolaget LM Ericsson · 2000
- Intercepting call communications within an intelligent network87US 5,923,744 AEricsson Inc. · 1999
- Real-time communications fraud monitoring system79US 5,706,338 AAT&T Corp. · 1998
- Apparatus and method for identifying a third party engaged in communication with a called party43US 6,721,407 B1Telefonaktiebolaget LM Ericsson (publ) · 2004