Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5248583 | Negative single sheet color proofing system based on aqueous developable photo-oligomers | Wallace R. Lundquist, Thomas P. Klun, Michael B. Heller | 1993-09-28 |
| 4885225 | Color proof with non-blocking thermal adhesive layer with particulate polymer beads | Michael B. Heller, David R. Walbridge | 1989-12-05 |
| 4666817 | Presensitized diazo color-proofing sheet with particular sized pigments | — | 1987-05-19 |