Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9232288 | Article having karaoke record feature and simultaneous playback | Timothy J. Lien, Randy S. Knipp, Robert D. Wertanen, Sara F. Coash | 2016-01-05 |
| 8719033 | Greeting card having karaoke record feature and simultaneous playback | Timothy J. Lien, Randy S. Knipp, Robert D. Wertanen, Sara F. Coash | 2014-05-06 |