Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8525814 | System and method of distinguishing multiple touch points applied to an optical touch system | Chih-Chieh Hsiao | 2013-09-03 |
| 8493362 | Image-based coordinate input apparatus and method utilizing buffered images | Teng-Chieh Kang, Chih-Chieh Hsiao | 2013-07-23 |
| 6019108 | Engaging arrangement for a hair holder | — | 2000-02-01 |
| 5881741 | Hair holder and assembling method therefor | — | 1999-03-16 |
| 5735296 | Hair holder | — | 1998-04-07 |
| 5642740 | Hair holder | — | 1997-07-01 |
| 5025165 | Method for producing a semiconductor device using an electron beam exposure tool and apparatus for producing the device | Martin Feldman, Herbert A. Waggener | 1991-06-18 |