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Multiple watermarking techniques for documents and other data

09/616,462 | U.S. Patent Application

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Location FILE REPOSITORY (FRANCONIA)
Filed July 14, 2000
Examiner JAYANTI K PATEL
Class 382
Art Group 2623
Patent No. 6,332,031
Case Type Utility - 382/100000
Status Patented Case
Parent 09/234,780 Abandoned
Parent 60/71,983 Expired
Last Updated: 4 years, 8 months ago
Date # Transaction