Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768892 | Electromagnetic hammer actuator for impact printer | Douglas S. Brown, William Alexander LeMay PATTERSON | 1988-09-06 |
| 4579055 | Printer having drive and control system for metal band holding print elements | — | 1986-04-01 |
| 4546699 | Printer having drive and control system for metal band holding print elements | David M. Sedgwick | 1985-10-15 |
| 4540296 | Bar band intersectional matrix printer | — | 1985-09-10 |
| 4428284 | Band and hammer dot matrix printer | — | 1984-01-31 |
| 4428285 | Oscillatory band and hammer dot matrix printer | Norman F. Cole | 1984-01-31 |
| 4421025 | Spring mounted torsionally rigid print hammer mechanism | William Alexander LeMay PATTERSON | 1983-12-20 |
| 4399748 | Multiplexed hammer dot band matrix printer | — | 1983-08-23 |
| 4273040 | Segmented drum bar helix printer | Robert A. Sebrosky | 1981-06-16 |