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Kai Huang
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Mountain View, CA, US
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Patents Grants
last 30 patents
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Patent Grant
Abuse-resistant method of providing invitation codes for registerin...
Patent number
8,768,302
Issue date
Jul 1, 2014
Google Inc.
Keith J. Coleman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Patent Grant
Abuse-resistant method of registering user accounts with an online...
Patent number
8,023,927
Issue date
Sep 20, 2011
Google Inc.
Keith J. Coleman
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
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Patent Application
Abuse-Resistant Method of Providing Invitation Codes for Registerin...
Publication number
20120009898
Publication date
Jan 12, 2012
Keith J. Coleman
H04 - ELECTRIC COMMUNICATION TECHNIQUE