Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5461388 | Dual GPS timer apparatus and method | Alan R. Helfinstine, Daniel Wieberdink | 1995-10-24 |
| 5424949 | Multi-channel data receiver system | Alan R. Helfinstine, Michael R. Ibis, Bryan L. Wyberg | 1995-06-13 |