Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8843313 | Multipath isolation through the combined use of antenna diversity and frequency diversity | Per K. Enge, Gregory M. Gutt, James C. Lassa, Michael A. Rizzo, David A. Whelan | 2014-09-23 |
| 8019541 | Real-time data aiding for enhanced GPS performance | Clark E. Cohen, Greg Gutt, David A. Whelan | 2011-09-13 |
| 7904243 | Real-time data aiding for enhanced GPS performance | Clark E. Cohen, Greg Gutt, David A. Whelan | 2011-03-08 |