Issued Patents 2002
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6449367 | Steganographic techniques for securely delivering electronic digital rights management control information over insecure communication channels | Robert P. Weber | 2002-09-10 |
| 6427140 | Systems and methods for secure transaction management and electronic rights protection | Karl Ginter, Victor H. Shear, Francis J. Spahn | 2002-07-30 |
| 6389402 | Systems and methods for secure transaction management and electronic rights protection | Karl Ginter, Victor H. Shear, Francis J. Spahn | 2002-05-14 |
| 6363488 | Systems and methods for secure transaction management and electronic rights protection | Karl Ginter, Victor H. Shear, Francis J. Spahn | 2002-03-26 |