Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7890374 | System and method for presenting music to consumers | Rehan Khan, Christian Pirkner, Thomas Sulzer | 2011-02-15 |
| 6539395 | Method for creating a database for comparing music | Robert O. Gjerdingen, Rehan Khan, Christian Pirkner, Pete W. Rice, Thomas Sulzer | 2003-03-25 |