Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5036537 | Geographic black-out method for direct broadcast satellite system | John Jeffers, Stephen P. Knight | 1991-07-30 |
| 4739510 | Direct broadcast satellite signal transmission system | John Jeffers, Donald R. Horne, Joseph B. Glaab | 1988-04-19 |