Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5272026 | Negative image process utilizing photosensitive compositions containing aromatic fused polycyclic sulfonic acid and partial ester or phenolic resin with diazoquinone sulfonic acid or diazoquinone carboxylic acid, and associated imaged article | Bruno Roland, Catherine Jakus | 1993-12-21 |
| 5116715 | Photosensitive compositions containing aromatic fused polycyclic sulfonic acid and partial ester of phenolic resin with diazoquinonesulfonic acid or diazoquinonecarboxylic acid | Bruno Roland, Catherine Jakus | 1992-05-26 |