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R. Ashby Armistead
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Los Altos, CA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Packet-switched telephony with circuit-switched backup
Patent number
7,668,158
Issue date
Feb 23, 2010
Cisco Technology, Inc.
R. Ashby Armistead
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Intraserver tag-switched distributed packet processing for network...
Patent number
7,616,646
Issue date
Nov 10, 2009
Cisco Technology, Inc.
Stephen Ma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Distributed packet processing architecture for network access servers
Patent number
7,606,245
Issue date
Oct 20, 2009
Cisco Technology, Inc.
Stephen Ma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Call control system and method for automatic routing of circuit swi...
Patent number
7,493,411
Issue date
Feb 17, 2009
Cisco Technology, Inc.
R. Ashby Armistead
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Modem failover without call loss
Patent number
7,116,707
Issue date
Oct 3, 2006
Cisco Technology, Inc.
R. Ashby Armistead
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Distributed packet processing architecture for network access servers
Patent number
6,954,463
Issue date
Oct 11, 2005
Cisco Technology, Inc.
Stephen Ma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Packet-switched telephony with circuit-switched backup
Patent number
6,781,983
Issue date
Aug 24, 2004
Cisco Technology, Inc.
R. Ashby Armistead
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for automatic routing of circuit switched data...
Patent number
6,643,703
Issue date
Nov 4, 2003
Cisco Technology
R. Ashby Armistead
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Programmable multiple-standard digital communications system
Patent number
6,553,117
Issue date
Apr 22, 2003
Cisco Technology, Inc.
R. Ashby Armistead
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for automatic routing of circuit switched data...
Patent number
6,529,959
Issue date
Mar 4, 2003
Cisco Technology
R. Ashby Armistead
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Digital communication system accepting both balanced and unbalanced...
Patent number
6,522,151
Issue date
Feb 18, 2003
Cisco Technology, Inc.
R. Ashby Armistead
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method and apparatus for automatic routing of circuit switched data...
Patent number
6,260,071
Issue date
Jul 10, 2001
Cisco Technology, Inc.
R. Ashby Armistead
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Single-port connection and circuitry accepting both balanced and un...
Patent number
6,250,936
Issue date
Jun 26, 2001
Cisco Technology, Inc.
R. Ashby Armistead
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Distributed packet processing architecture for network access servers
Publication number
20060013240
Publication date
Jan 19, 2006
Stephen Ma
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Packet-switched telephony with circuit-switched backup
Publication number
20050025134
Publication date
Feb 3, 2005
Cisco Technology, Inc.
R. Ashby Armistead
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Single-port connection and circuitry accepting both balanced and un...
Publication number
20010053627
Publication date
Dec 20, 2001
R. Ashby Armistead
H01 - BASIC ELECTRIC ELEMENTS