Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5884755 | Revolving coin display stand | — | 1999-03-23 |
| 4295065 | Level shift circuit | Peter K. Hsieh | 1981-10-13 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5884755 | Revolving coin display stand | — | 1999-03-23 |
| 4295065 | Level shift circuit | Peter K. Hsieh | 1981-10-13 |