Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673430 | System and method for optimizing subscriber programming preferences | — | 1997-09-30 |
| 5663756 | Restricted access remote control unit | Donald E. Blahut, Edward Stanley Szurkowski | 1997-09-02 |