Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4836106 | Direct offset master by resistive thermal printing | Keith S. Pennington | 1989-06-06 |
| 4810119 | Resistive ribbon for high resolution printing | Ronald T. Cannavaro, Walter Crooks, Mukesh Desai, Keith S. Pennington, Jean-Piet Hoekstra +1 more | 1989-03-07 |
| 4800397 | Metal transfer to form printing master plate or printed circuit board | Mukesh Desai, Bradford J. Factor, Jan-Pieter Hoekstra, Keith S. Pennington | 1989-01-24 |