Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5670447 | 35mm format transparencies | Ian Richard Stephenson, Ha Cong Viet Tran | 1997-09-23 |
| 5607896 | Thermal transfer printing dyesheet | — | 1997-03-04 |
| 5602072 | Thermal transfer printing dye sheet | Ian Richard Stephenson | 1997-02-11 |