Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5392338 | Entry of alphabetical characters into a telephone system using a conventional telephone keypad | Sherif Danish, Kris Walter Kimbrough | 1995-02-21 |
| 5339358 | Telephone keypad matrix | Sherif Danish, Kris Walter Kimbrough | 1994-08-16 |
| 5117455 | Telephone keypad matrix | — | 1992-05-26 |
| 4555693 | Multikey keyboard for inputting data into a computer | Sherif Danish | 1985-11-26 |
| 4444997 | Device for generating electric signals representing the position coordinates of a stylus on a reference surface | Sherif Danish | 1984-04-24 |