Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5917530 | Dye diffusion thermal transfer printing | Kenneth West Hutt, Ian Richard Stephenson, Richard A. Hann, Dafydd G. Davies, Alan J. Harry +1 more | 1999-06-29 |
| 5864356 | Laser dye thermal transfer printing | Kenneth West Hutt, Richard A. Hann | 1999-01-26 |
| 5670447 | 35mm format transparencies | Kenneth West Hutt, Ian Richard Stephenson | 1997-09-23 |