Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5659368 | Auxiliary video information system including extended data services | — | 1997-08-19 |
| 5617146 | System for controlling updates of extended data services (EDS) data | David J. Duffield, Gabriel Alfred Edde | 1997-04-01 |