Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5786072 | Prepress sealer application technology | Oscar Hsien-Hsiang Hsu | 1998-07-28 |
| 5695823 | Prepress sealer application technology by foaming | Oscar Hsien-Hsiang Hsu | 1997-12-09 |