Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4936697 | Impact printer platen support | Helmut K. Waibel | 1990-06-26 |
| 4893950 | Apparatus and method for controlling the positioning of marking elements in a serial impact printer | Robert A. Ragen, Andrew Gabor, Michiel Frankhuizen, Brian E. Jagger | 1990-01-16 |