Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4876237 | Thermally-transferable fluorescent 7-aminocoumarins | Derek D. Chapman | 1989-10-24 |
| 4871714 | Thermally-transferable fluorescent diphenyl ethylenes | Derek D. Chapman | 1989-10-03 |
| 4866025 | Thermally-transferable fluorescent diphenylpyrazolines | Richard P. Henzel | 1989-09-12 |
| 4855281 | Stabilizer-donor element used in thermal dye transfer | — | 1989-08-08 |