Issued Patents 2003
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661386 | Through glass RF coupler system | Terry C. Helstrom, Karl R. Guppy | 2003-12-09 |
| 6621458 | Combination linearly polarized and quadrifilar antenna sharing a common ground plane | Terry C. Helstrom | 2003-09-16 |
| 6538609 | Glass-mountable antenna system with DC and RF coupling | Anh Nguyen | 2003-03-25 |
| 6535179 | Drooping helix antenna | — | 2003-03-18 |