Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7111027 | Method for automatically adding scale symbol to operation formula during operation and system executing the method | — | 2006-09-19 |
| 6847382 | Method used to zoom in selective plot area in display and a plotting calculator applied the like | Pei-Chih Chen | 2005-01-25 |