Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4689633 | Flared microwave feed horns and waveguide transitions | Charles M. Knop | 1987-08-25 |
| 4604627 | Flared microwave feed horns and waveguide transitions | Charles M. Knop | 1986-08-05 |
| 4553112 | Overmoded tapered waveguide transition having phase shifted higher order mode cancellation | Charles M. Knop | 1985-11-12 |
| 4540959 | Rectangular to elliptical waveguide connection | — | 1985-09-10 |