Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877676 | Hot melt ink transparency | Linda T. Creagh, Paul A. Hoisington, Bruce A. Paulson, Robert R. Schaffer, Charles W. Spehrley, Jr. | 1989-10-31 |
| 4801473 | Method for preparing a hot melt ink transparency | Linda T. Creagh, Paul A. Hoisington, Bruce A. Paulson, Robert R. Schaffer, Charles W. Spehrley, Jr. | 1989-01-31 |