Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5986646 | Method and apparatus for finding the location of a pointing instrument on a tablet | Chien-Hung Chen, Che-Wei Hsu | 1999-11-16 |
| 5914710 | Cordless pointing instrument for graphics tablet | Chien-Hung Chen, Che-Wei Hsu | 1999-06-22 |
| 5844548 | Stable wireless pointing device for a tablet | Chien-Hung Chen, Che-Wei Hsu | 1998-12-01 |
| 5428192 | Method and apparatus for finding the location of a pointing instrument on a tablet | Chien-Hung Chen | 1995-06-27 |