Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6661465 | Television interface for handheld calculator for use with multiple calculator display formats | Xiaoming Zhu | 2003-12-09 |
| 5168294 | Display demonstration system for providing enlarged projected image of calculator display | Peter H. Davis, Brad V. Christensen | 1992-12-01 |