Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6133889 | Log periodic dipole antenna having an interior centerfeed microstrip feedline | Charles M. Powell | 2000-10-17 |
| 5818397 | Circularly polarized horizontal beamwidth antenna having binary feed network with microstrip transmission line | Charles M. Powell | 1998-10-06 |
| 5481272 | Circularly polarized microcell antenna | — | 1996-01-02 |
| 5469181 | Variable horizontal beamwidth antenna having hingeable side reflectors | — | 1995-11-21 |
| 5233363 | Connector assembly for fixed triband antenna | Michael Leonard Brennan, Frank Duggan | 1993-08-03 |
| 5189435 | Retractable motorized multiband antenna | Michael Leonard Brennan, Frank Duggan | 1993-02-23 |
| 5079562 | Multiband antenna | Michael Leonard Brennan, James R. Hendershot | 1992-01-07 |