Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6774845 | Single receiver wireless tracking system | — | 2004-08-10 |
| 6683567 | Single receiver wireless tracking system | Frank Gerlach | 2004-01-27 |
| 6590535 | Single receiver wireless tracking system | Frank Gerlach | 2003-07-08 |
| 6587080 | Single receiver wireless tracking system | Frank Gerlach | 2003-07-01 |
| 6437740 | Single receiver wireless tracking system | Frank Gerlach | 2002-08-20 |