Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304343 | Three-sided magnetic folio | Tien-Tsung Chen, Christopher H. Binkley, K. Fou Tsai | 1989-10-31 |
| D302830 | Magnetic folio | Tien-Tsung Chen, Christopher H. Binkley, K. Fou Tsai | 1989-08-15 |
| D302699 | Two-sided magnetic folio | Tien-Tsung Chen, Christopher H. Binkley, K. Fou Tsai | 1989-08-08 |