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Siegfried Ergezinger
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Mettman, DE
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Patents Grants
last 30 patents
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Patent Grant
Method and system to enable email services for mobile devices
Patent number
7,983,658
Issue date
Jul 19, 2011
Koninklijke KPN N.V.
Lutz Wolfgang Grüneberg
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Call-number based customer identification method for personalizable...
Patent number
7,898,989
Issue date
Mar 1, 2011
E-Plus Mobilfunk GmbH & Co. KG
Siegfried Ergezinger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for establishing the authenticity of the identity of a servi...
Patent number
7,865,719
Issue date
Jan 4, 2011
E-Plus Mobilfunk GmbH & Co. KG
Christian Müller
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and device for calculating charges in telecommunications net...
Patent number
6,618,583
Issue date
Sep 9, 2003
E-Plus Mobilfunk GmbH & Co. KG
Siegfried Ergezinger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
Method and processing unit for providing mobile service access to a...
Publication number
20090270074
Publication date
Oct 29, 2009
Koninklijke KPN N.V.
Siegfried Ergezinger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Network controlled classification of service tariff class
Publication number
20090061816
Publication date
Mar 5, 2009
Koninklijke KPN N.V.
Siegfried Ergezinger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and system to enable email services for mobile devices
Publication number
20060190530
Publication date
Aug 24, 2006
Koninklijke KPN N.V.
Lutz Wolfgang Gruneberg
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for establishing the authenticity of the identity of a servi...
Publication number
20030159031
Publication date
Aug 21, 2003
Christian Müller
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Call-number based customer identification method for personalizable...
Publication number
20030149583
Publication date
Aug 7, 2003
Siegfried Ergezinger
G06 - COMPUTING CALCULATING COUNTING