H04M 3/307
Using ringback
Official title: {using ringback}
H04M3/307 (Using ringback) appears on 8 US grants and 8 published applications in this corpus.
Search patents in H04M- Granted patents
- 8
- Published applications
- 8
- Assignees
- 11
- Inventors
- 29
- Latest grant
- 3 Jun 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 2 |
| 2011 | 1 | 1 |
| 2012 | 3 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Real time measurement of network delay3 Jun 2014US 8,743,707 B2Verizon Patent and Licensing Inc.
- Method and apparatus of transmitting personal information in subscriber-based ringback tone service20 Nov 2012US 8,315,614 B2SK Telecom Co., Ltd.
- Method of and a device for quantifying a tone signal received in a telecommunications network17 Jul 2012US 8,223,928 B2V.S.N. Beheer B.V.
- Method for checking a ring-back signal21 Feb 2012US 8,121,266 B2Swissqual License AG
- Polled geofencing and distinguished ring-back18 Jan 2011US 7,873,158 B2Alcatel-Lucent USA Inc.
- Method of and a device for quantifying a tone signal received in a telecommunications network3 Mar 2011US 2011/0051905 A1V.S.N. Beheer B.V.
- Method for checking a ring-back signal25 Nov 2010US 2010/0296635 A1Swissqual License AG
- Method for Sharing Audio-only content, Audio-Visual content, and Visual-only content between Subscribers on a Telephone call1 Apr 2010US 2010/0080361 A1
- Real Time Measurement Of Network Delay2 Apr 2009US 2009/0086716 A1Verizon Data Services Inc.
- Method and Apparatus of Transmitting Personal Information in Subscriber-Based Ringback Tone Service3 Jan 2008US 2008/0002824 A1SK Telecom Co., Ltd.
Most cited
By later US patents
- Telephone ringback test device and method20US 6,005,921 AHarris Corporation · 1999
- Method to pre-qualify copper loops for ADSL service20US 6,349,130 B1Lucent Technologies Inc. · 2002
- Method and apparatus of transmitting personal information in subscriber-based ringback tone service6US 8,315,614 B2SK Telecom Co., Ltd. · 2012
- Method and system for call notification1US 7,054,429 B2International Business Machines Corporation · 2006
- Polled geofencing and distinguished ring-back1US 7,873,158 B2Alcatel-Lucent USA Inc. · 2011