Membership
Tour
Register
Log in
Dahong Qian
Follow
Person
Westford, MA, US
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
System and method for coordinated and secure-content group-browsing...
Patent number
7,305,439
Issue date
Dec 4, 2007
Net2Phone, Inc.
Dahong Qian
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
System for enabling multiple clients to interact together over a ne...
Patent number
7,139,799
Issue date
Nov 21, 2006
Net2Phone, Inc.
Dahong Qian
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Method of and architecture for optically switching light communicat...
Patent number
6,999,651
Issue date
Feb 14, 2006
Analog Devices, Inc.
Dahong Qian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method of and architecture for optically switching light communicat...
Patent number
6,678,437
Issue date
Jan 13, 2004
Analog Devices, Inc.
Dahong Qian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image sensor shielding
Patent number
6,278,169
Issue date
Aug 21, 2001
Analog Devices, Inc.
Mark Sayuk
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Spatially offset, row interpolated image sensor
Patent number
6,166,831
Issue date
Dec 26, 2000
Analog Devices, Inc.
Stuart D. J. Boyd
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
Group-browsing system
Publication number
20060129642
Publication date
Jun 15, 2006
Net2Phone, Inc.
Dahong Qian
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
Method of and architecture for optically switching light communicat...
Publication number
20050058392
Publication date
Mar 17, 2005
Axiowave Networks, Inc.
Dahong Qian
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of and architecture for optically switching light communicat...
Publication number
20020141689
Publication date
Oct 3, 2002
Axiowave Networks,Inc.
Dahong Qian
G02 - OPTICS
Information
Patent Application
Group-browsing system
Publication number
20020032731
Publication date
Mar 14, 2002
Net2Phone, Inc.
Dahong Qian
G06 - COMPUTING CALCULATING COUNTING