Patents Assigned to Protexis Inc. - Justia Patents Search

Patents Assigned to Protexis Inc.

System for persistently encrypting critical software file to prevent installation of software program on unauthorized computers

Patent number: 6223288

Abstract: A data encryption/decryption system is provided which encrypts a critical file to a software program using an embedded executable. The executable programs a user computer to prompt a user to purchase a license key to decrypt the critical file in order to run the software program.

Type: Grant

Filed: May 22, 1998

Date of Patent: April 24, 2001

Assignee: Protexis Inc.

Inventor: Shannon Byrne