Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8525616 | Antenna feed network to produce both linear and circular polarizations | Robert Shaw, Jonathan P. MacGahan, Sulinder S. Dhanjal, Erik Lier, James W. Matthews +1 more | 2013-09-03 |
| 7489271 | Optimized receive antenna and system for precision GPS-at-GEO navigation | James W. Matthews, Neil E. Goodzeit | 2009-02-10 |
| 7352336 | Directive linearly polarized monopole antenna | Erik Lier | 2008-04-01 |
| 7286099 | Rotation-independent helical antenna | Erik Lier, Leon R. Smolenski | 2007-10-23 |