Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6806843 | Antenna system with active spatial filtering surface | William D. Killen | 2004-10-19 |
| 6791496 | High efficiency slot fed microstrip antenna having an improved stub | William D. Killen, Randy T. Pike | 2004-09-14 |