Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5769551 | Expandable keyboard for a portable computer | Richard Hsu, Sohrab Vossoughi | 1998-06-23 |
| 5754395 | Ergonomic keyboard for a portable computer which is moveable between two positions | Richard Hsu, Stewart Hsu | 1998-05-19 |