Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8577425 | Automatic recharging wireless headset | Mark W. Kroll | 2013-11-05 |
| 8340731 | Automatic recharging wireless headset | Mark W. Kroll | 2012-12-25 |
| 8160655 | Automatic recharging wireless headset | Mark W. Kroll | 2012-04-17 |
| 6580908 | Generic number cellular telephone | Mark W. Kroll, Chase R. Kroll, Karl J. F. Kroll | 2003-06-17 |
| 6115597 | Disposal emergency cellular phone | Mark W. Kroll | 2000-09-05 |
| 5662534 | Golf ball finding system | Mark W. Kroll | 1997-09-02 |