Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814785 | Wideband gridded square frequency selective surface | — | 1989-03-21 |
| 4786914 | Meanderline polarization twister | Darrell L. Helms | 1988-11-22 |
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814785 | Wideband gridded square frequency selective surface | — | 1989-03-21 |
| 4786914 | Meanderline polarization twister | Darrell L. Helms | 1988-11-22 |