Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9247295 | Automated playlist generation | — | 2016-01-26 |
| 7752049 | Interleaving of information into compressed digital audio streams | — | 2010-07-06 |
| 7228054 | Automated playlist generation | — | 2007-06-05 |
| 7146322 | Interleaving of information into compressed digital audio streams | — | 2006-12-05 |
| 6606281 | Personal audio player with a removable multi-function module | John D. Marshall, Phil Johnson, Michael Walters | 2003-08-12 |