Motion, orientation, and touch-based CAPTCHAs | Patent Number 09192861
US 09192861 B2Filled DateMar 24, 2014
Priority DateJun 27, 2008
Publication DateOct 2, 2014
Expiration DateNov 24, 2023
Inventor/ApplicantsJohn Nicholas Gross
ExaminesLANEAU, RONALD
Art Unit3714
Technology Center3700
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