Frederick Robert Chang

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Austin, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Ethernet wide area networks and methods
- Patent number 8,149,853
- Issue date Apr 3, 2012
- AT&T Labs, Inc.
- Frederick Robert Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ethernet wide area network and method
- Patent number 7,633,951
- Issue date Dec 15, 2009
- AT&T Intellectual Property I, L.P.
- Frederick Robert Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of improving the reliability of peer-to-peer network downloads
- Patent number 7,475,132
- Issue date Jan 6, 2009
- AT&T Knowledge Ventures, L.P.
- Frederick Robert Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of improving the reliability of peer-to-peer network downloads
- Patent number 7,272,645
- Issue date Sep 18, 2007
- SBC Technology Resources, Inc.
- Frederick Robert Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ethernet wide area network and method
- Patent number 7,046,671
- Issue date May 16, 2006
- SBC Knowledge Ventures, L.P.
- Frederick Robert Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
ETHERNET WIDE AREA NETWORKS AND METHODS
- Publication number 20100103944
- Publication date Apr 29, 2010
- Frederick Robert Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD OF IMPROVING THE RELIABLITY OF PEER-TO-PEER NETWORK DOWNLOADS
- Publication number 20070271380
- Publication date Nov 22, 2007
- Frederick Robert Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Ethernet wide area network and method
- Publication number 20060153213
- Publication date Jul 13, 2006
- Frederick Robert Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Ethernet wide area network and method
- Publication number 20030210706
- Publication date Nov 13, 2003
- Frederick Robert Chang
- H04 - ELECTRIC COMMUNICATION TECHNIQUE