IP Library › Granted Patent US 6,708,894
Granted Patent Utility
US 6,708,894 · Confirmation No. 1121

METHOD FOR INVISIBLE EMBEDDED DATA USING YELLOW GLYPHS

Inventor: Paul K. Mazaika
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Quick Facts
Patent No.
US 6,708,894
App. No.
09/888,511
Filed
2001-06-26
Granted
2004-03-23
Pub. No.
US20020195501A1
Art Unit
2876
PTA
0 days