Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5822015 | Providing an accurate tally indication of sources in use for output | Nicholas Barton, Antony Richard Jones | 1998-10-13 |
| 4922345 | Processing of video image signals | Nicholas Barton, Robert Billing | 1990-05-01 |
| 4595955 | Electro-optical tube alignment and beam current adjustment | Philip R. Groves | 1986-06-17 |