Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4456915 | Print head for high resolution electrothermal printing apparatus | Walter Crooks, Cameron H. Hafer | 1984-06-26 |
| 4308318 | Rub resistant ribbon for non-impact printing | — | 1981-12-29 |
| 4291994 | Tear resistant ribbon for non-impact printing | Thor L. Smith | 1981-09-29 |
| 4269892 | Polyester ribbon for non-impact printing | Meredith D. Shattuck | 1981-05-26 |