Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5039588 | Non-electroscopic prolonged tack toners | Howard Matrick | 1991-08-13 |
| 4948701 | Silver halide wash-out elements | — | 1990-08-14 |
| 4923389 | Negative working low silver wash-off contact film | — | 1990-05-08 |
| 4869996 | Process for preparing negative images on a positive-type tonable photosensitive element | Peter J. McCartin, Eugene L. Grubb, Howard Matrick, Bohdan Rakoczy | 1989-09-26 |
| 4654296 | Process for making lithographic film using photopolymer diffusion modulation layer for pigmented bottom layer | — | 1987-03-31 |
| 4584261 | Process for etching nonphotosensitive layer under washoff photopolymer layer | — | 1986-04-22 |
| 4579808 | Imageable colloidal metal/mercaptan elements | — | 1986-04-01 |
| 4567129 | Process for image formation utilizing chemically soluble pigments | — | 1986-01-28 |
| 4567130 | Process for etching single photopolymer layer utilizing chemically soluble pigments | — | 1986-01-28 |
| 4565770 | Process for dot etching acid soluble photopolymerizable elements utilizing chemically soluble pigments | — | 1986-01-21 |
| 4469625 | Prolonged tack toners for the preparation of electric circuits | — | 1984-09-04 |
| 4461823 | Multiple transfer of tacky image areas using prolonged tack toners | — | 1984-07-24 |
| 4416968 | Preparation of a printing master by toning a photopolymer film with magnetic toner | — | 1983-11-22 |
| 4264692 | Photopolymerized elements having selectively dye absorbed hydrophilic and oleophilic images | — | 1981-04-28 |
| 4198236 | Method for preparation of lithographic printing plate having addition polymerized areas and binder areas | — | 1980-04-15 |