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H04M2215/143
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ELECTRICITY
H04
Electric communication
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TELEPHONIC COMMUNICATION
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H04M2215/143
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Patents Grants
last 30 patents
Information
Patent Grant
Information presenting device, information presenting method and re...
Patent number
11,489,971
Issue date
Nov 1, 2022
NEC Corporation
Takeo Onishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for call hibernation
Patent number
8,345,847
Issue date
Jan 1, 2013
Alcatel Lucent
Sriram Munjurpattu Krishnamurthy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Recovery of lost revenue in prepaid calls
Patent number
8,180,321
Issue date
May 15, 2012
AT&T Mobility II LLC
Mustafa Anwar Kazmi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission of data over a radio frequency channel
Patent number
7,092,718
Issue date
Aug 15, 2006
Hewlett-Packard Development Company, L.P.
Lewis A. Bergins
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Ain based call retry and enhanced call waiting services
Patent number
6,834,101
Issue date
Dec 21, 2004
Verizon Services Corp.
Barry Paul Pershan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission of data over a radio frequency channel
Patent number
6,564,071
Issue date
May 13, 2003
Microcom Systems, Inc.
Lewis A. Bergins
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Transmission of data over a radio frequency channel
Patent number
5,826,198
Issue date
Oct 20, 1998
Microcom Systems, Inc.
Lewis A. Bergins
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
INFORMATION PRESENTING DEVICE, INFORMATION PRESENTING METHOD AND RE...
Publication number
20190306325
Publication date
Oct 3, 2019
NEC Corporation
Takeo Onishi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
EXCHANGE AND COMMUNICATION MANAGEMENT METHOD
Publication number
20130072151
Publication date
Mar 21, 2013
NTT DoCoMo, Inc.
Michiko Wakui
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
REVERSE CHARGE CALLING IN A COMMUNICATIONS NETWORK
Publication number
20120015627
Publication date
Jan 19, 2012
Richard Band
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Establishing a Call From a Calling Party to a Destination in a Tele...
Publication number
20100202602
Publication date
Aug 12, 2010
Rogier Noldus
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Recovery of Lost Revenue in Prepaid Calls
Publication number
20090081988
Publication date
Mar 26, 2009
AT&T Mobility II LLC
Mustafa Anwar Kazmi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
System and method for call hibernation
Publication number
20080292076
Publication date
Nov 27, 2008
LUCENT TECHNOLOGIES INC.
Sriram Munjurpattu Krishnamurthy
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Accounting method and system in a communication system
Publication number
20080020731
Publication date
Jan 24, 2008
Samsung Electronics Co., Ltd.
Jae-Young Kim
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Hold time reporting in communication systems
Publication number
20060264199
Publication date
Nov 23, 2006
LUCENT TECHNOLOGIES INC.
Cynthia K. Florkey
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Transmission of data over a radio frequency channel
Publication number
20030186706
Publication date
Oct 2, 2003
Lewis A. Bergins
H04 - ELECTRIC COMMUNICATION TECHNIQUE