Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6611183 | Resonant coupling elements | — | 2003-08-26 |
| 6597259 | Selective laminated filter structures and antenna duplexer using same | — | 2003-07-22 |
| 5616540 | Electromagnetic resonant filter comprising cylindrically curved split ring resonators | Robert D. Lithgow | 1997-04-01 |