Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6881840 | Benzothiazine dyes for imaging elements | Margaret J. Helber, John DiCillo | 2005-04-19 |
| 6558888 | Imaging materials containing novel benzothiazine dyes | Margaret J. Helber, John DiCillo | 2003-05-06 |