Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4930101 | Microprocessor-controlled meter package for a printer | Yuen W. Wong, Paul Amdahl | 1990-05-29 |
| 4806031 | Uniform print density and registration in an impact printer | Paul Amdahl, John Ham | 1989-02-21 |