Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6385596 | Secure online music distribution system | Philip R. Wiser, Andrew R. Cherenson, Susan A. Cannon | 2002-05-07 |
| 6367019 | Copy security for portable music players | Andrew R. Cherenson, Mark E. Paley, Steven Katz, John Michael Kelsey, Jr., Bruce Schneier | 2002-04-02 |