Methods for presenting and determining the efficacy of progressive pictorial and motion-based CAPTCHAs | Patent Number 08752141

US 08752141 B2
Application Number12494083
Publication NumberUS 20090328150 A1
Pendency4 years, 11 months, 17 days
Filled DateJun 29, 2009
Priority DateJun 27, 2008
Publication DateDec 31, 2009
Expiration DateJun 26, 2028
Inventor/ApplicantsJohn Nicholas Gross
JOHN NICHOLAS GROSS
ExaminesDADA, BEEMNET W
Art Unit2435
Technology Center2400
Assignments
Human Differential Intelligence Llc
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