Inventor

PULLEN WALTER D

US3 patents

Patents

3 patents

US7760903B2Jul 20, 2010

Tamper-resistant text stream watermarking

MICROSOFT CORP10 citations81

US7894630B2Feb 22, 2011

Tamper-resistant text stream watermarking

MICROSOFT CORP5 citations59

US7797742B2Sep 14, 2010

File blocking mitigation

MICROSOFT CORP3 citations54