Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7246246 | System for keying protected electronic data to particular media to prevent unauthorized copying using a compound key | Michael Hawkins, Trent M. Thomas | 2007-07-17 |
| 6434535 | System for prepayment of electronic content using removable media and for prevention of unauthorized copying of same | Michael G. Lundgren | 2002-08-13 |