Inventor

KRUGER STEPHEN PAUL

IE3 patents

Patents

3 patents

US8869246B2Oct 21, 2014

Mask based challenge response test

KRUGER STEPHEN PAUL7 citations78

US8898740B2Nov 25, 2014

Mask based challenge response test

KRUGER STEPHEN PAUL1 citations46

US8452789B2May 28, 2013

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KRUGER STEPHEN PAUL0 citations36