Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7511621 | High-performance mobile power antennas | Dah-Weih Duan, Daniel J. Friedman, Harley Heinrich, Ian Bardwell-Jones | 2009-03-31 |
| 6400274 | High-performance mobile power antennas | Dah-Weih Duan, Daniel J. Friedman, Harley Heinrich, Ian Bardwell-Jones | 2002-06-04 |