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Michael G. Duncan
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Fremont, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
System and method for utilizing circuit switched and packet switche...
Patent number
7,912,038
Issue date
Mar 22, 2011
H. Stephen Berger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
System and method for utilizing circuit switched and packet switche...
Patent number
6,882,640
Issue date
Apr 19, 2005
Siemens Communications, Inc.
H. Stephen Berger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mousepad telephone
Patent number
6,369,795
Issue date
Apr 9, 2002
Siemens Information & Communication Mobile LLC
Leland Lester
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Durable telephone with no moving parts
Patent number
6,125,180
Issue date
Sep 26, 2000
Siemens Information and Communication Networks, Inc.
Leland Lester
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Mousepad telephone
Patent number
6,061,446
Issue date
May 9, 2000
Siemens Information and Communication Networks, Inc.
Leland Lester
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method and apparatus for implementing a dialpad on the surface of a...
Patent number
5,847,695
Issue date
Dec 8, 1998
Siemens Business Communication Systems, Inc.
Michael Glen Duncan
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Interface for providing call control for a headset attached to a te...
Patent number
5,825,873
Issue date
Oct 20, 1998
Siemens Business Communication Systems, Inc.
Michael Glen Duncan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for instantaneous in-band document exchange du...
Patent number
5,764,279
Issue date
Jun 9, 1998
Siemens Business Communication Systems, Inc.
Gordon Douglas Ford
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Apparatus and method for relaying calling information to a pager or...
Patent number
5,502,761
Issue date
Mar 26, 1996
ROLM Company
Michael G. Duncan
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dynamically configurable telephone
Patent number
4,928,306
Issue date
May 22, 1990
International Business Machines Corporation
Gautam Biswas
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Time division multiplexed computerized branch exchange
Patent number
4,627,050
Issue date
Dec 2, 1986
Rolm Corporation
Howard W. Johnson
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
System and method for utilizing circuit switched and packet switche...
Publication number
20060023696
Publication date
Feb 2, 2006
Siemens Information and Communications Products, Inc.
H. Stephen Berger
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TELEPHONE CONTROL VIA AN EXTERNAL CONTACT CLOSURE
Publication number
20010038685
Publication date
Nov 8, 2001
MICHAEL GLEN DUNCAN
H04 - ELECTRIC COMMUNICATION TECHNIQUE