COLVIN, DAVID S.

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Patent Activity in the Last 10 Years

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D428004 Electronic deviceJun 22, 99Jul 11, 00[1402]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6857078 Method for securing software to increase license complianceExpiredMay 30, 02Feb 15, 05[H04L]
6813717 Method for securing software to reduce unauthorized useExpiredMay 13, 02Nov 02, 04[H04L]
6813718 Computer readable storage medium for securing software to reduce unauthorized useExpiredJun 26, 02Nov 02, 04[H04L]
6799277 System and method for monitoring softwareExpiredMar 27, 01Sep 28, 04[H04L]
6785825 Method for securing software to decrease software piracyExpiredMay 31, 02Aug 31, 04[H04L]

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