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Eduard Zwack
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Puchheim, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Method for internet-protocol-based transmission of communication data
Patent number
7,436,847
Issue date
Oct 14, 2008
Siemens Aktiengesellschaft
Eduard Zwack
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for transmitting time information via a data packet network
Patent number
7,372,846
Issue date
May 13, 2008
Siemens Aktiengesellschaft
Eduard Zwack
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Node device for a serial databus connecting a number of devices
Patent number
6,922,742
Issue date
Jul 26, 2005
Siemens Aktiengesellschaft
Eduard Zwack
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Circuit arrangement for generating a clock-pulse signal having a fr...
Patent number
6,559,696
Issue date
May 6, 2003
Siemens Aktiengesellschaft
Juergen Heitmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and arrangement for determining the phase difference between...
Patent number
6,313,621
Issue date
Nov 6, 2001
Siemens Aktiengesellschaft
Eduard Zwack
G01 - MEASURING TESTING
Information
Patent Grant
Method and arrangement for determining the phase difference between...
Patent number
5,703,480
Issue date
Dec 30, 1997
Siemens Aktiengesellschaft
Eduard Zwack
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Oscillator circuit having a memory that stores the characteristic i...
Patent number
5,574,408
Issue date
Nov 12, 1996
Siemens Aktiengesellschaft
Eduard Zwack
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Temperature-stabilized oscillator circuit having heating elements t...
Patent number
5,467,059
Issue date
Nov 14, 1995
Siemens Aktiengesellschaft
Eduard Zwack
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method and apparatus for communicating operating information betwee...
Patent number
5,430,707
Issue date
Jul 4, 1995
Siemens Aktiengesellschaft
Eduard Zwack
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for synchronizing the phase of clock signals of two clock ge...
Patent number
5,052,028
Issue date
Sep 24, 1991
Siemens Aktiengesellschaft
Eduard Zwack
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method for temperature compensation of a voltage-controlled crystal...
Patent number
4,893,097
Issue date
Jan 9, 1990
Siemens Aktiengesellschaft
Eduard Zwack
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Phase locked loop wherein phase comparing and filtering are perform...
Patent number
4,864,253
Issue date
Sep 5, 1989
Siemens Aktiengesellschaft
Eduard Zwack
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Circuit arrangement for generating a clock signal which is synchron...
Patent number
4,835,481
Issue date
May 30, 1989
Siemens Aktiengesellschaft
Friedrich Geissler
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Method of adding additional subscribers and signals to existing con...
Patent number
4,754,478
Issue date
Jun 28, 1988
Siemens Aktiengesellschaft
Helmut Leibersberger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Method for synchronizing a communication system via a packet-orient...
Publication number
20030035444
Publication date
Feb 20, 2003
Siemens AG
Eduard Zwack
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method for transmitting time information via a data packet network
Publication number
20030002483
Publication date
Jan 2, 2003
Siemens Aktiengesellschaft
Eduard Zwack
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method for internet-protocol-based transmission of communication data
Publication number
20030002520
Publication date
Jan 2, 2003
Siemens AG
Eduard Zwack
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Node device for a serial databus connecting a number of devices
Publication number
20020097788
Publication date
Jul 25, 2002
Eduard Zwack
H04 - ELECTRIC COMMUNICATION TECHNIQUE