Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4980718 | Registration method in photolithography and equipment for carrying out this method | Stephen Hugh Salter, John Stevenson | 1990-12-25 |
| 4647850 | Integrated circuit for measuring mask misalignment | Brian Matthew Henderson, Anthony John Walton | 1987-03-03 |